KIPS Physics and etea medical paper 2017

ETEA Medical 2017 paper with hints

ETEA Medical 2017

Which of these locomotor organs would likely be the shortest ?

(a) A flagellum (b) A cilium (c) An extended pseudopod (d) A pellicle

Hint: Cilia are the shortest locomotors organs.

In order to see various aspects of specimen a three dimensional image of the object can be produced using:

(a) Compound microscope (b) Dark-field microscope

Hint: The most advanced microscope are transmission electron microscope (TEM) and scanning electron microscope (SEM). The magnification power up to 1,000,000 (1 million) times. On the other hand the scanning electron microscope can produce three dimensional image of an object used as specimen.

In saturated fatty acids more hydrogen are not accommodated because of:

(a) Presence of single bonds between carbon atoms

(b) Presence of Double bonds between carbon atoms

(d) Absence of bond between carbon atoms

2-FADH2 can yield energy:

(a) 4 ATP (b) 8 ATP

The three non infective genes in HIV are:

(a)gag, pol, rev (b) gag, pol, vpu

Which one is not a opportunistic disease related to HIV infection.

Destruction of body immune system

Recurrent pneumonia

Pulmonary tuberculosis

Toxoplasmosis

Hint: Destruction of body immune system is not an opportunistic disease related to HIV infection.

If in a situation some bacteria infected by a certain. Phages had somenow developed the ability to make a particular amino acid that was not in their genes before. What would be the possible explanation to this new ability ?

Introduction

Transformation

Transduction

Conjugation

Hint: During transduction some bacteria infected by a certain phages has some how developed the ability to make a particular amino acid that was not in their gene before.

The first organisms that oxygenated the atmosphere:

(a) Cyanobacteria

(b) Photorophic organisms

(d) All of the above

Hint: Cynobacteria (blue glae) are the phototrophic and anaerobic organisms when oxygenated the atmosphere. Cyanobacteria were involved in the photosynthesis in the early time of earth. Due to their photosynthetic activity. The level of oxygen raised from 1% to 21%.

What event is thought to have contributed to the evolution of eukaryotes ?

(a) Global warming

(b) Glaciation

(d) Oxygenation of the atmosphere

Hint: Life on earth for aerobic organisms was impossible in the earths early lie. Because the oxygen concentration in the atmosphere was very low, i.e. about 1% after the evaluation of photosynthetic pigments in cyanobacteria their photosynthetic activity increase and the concentration of oxygen in atmosphere raised to 21%. This event is called oxygenation of atmosphere and have contributed into the evolution of eukaryotes (aerobic organisms).

Rhizobium belongs to:

(a) Beta-protobacteria

(b) Gama-protobacteria

(d) Delta-protobacteria

Hint: Rhizobium belongs to the sub group alpha proteobacteria. This group includes bacteria which from symbiotic association with their hosts. Rhizobium from symbiotic association with the roots of leguminous plans for the fixation of atmosphere nitrogen (N2).

Poisonous red-tides in coastal area are caused by the blooms of:

(a) Euglenoids (b) Rhodophyta

Hint: In costal areas piosnous and destructive red tides are caused by great population explosions or blooms of dinoflagellates. Such tides change the colour of water to red.

Most conspicuous sea weeds are:

(a) Red algae (b) Blue algae

Hint: Brown algae are most conspicuous seaweeds. They are multicellular and their life cycle is marked by alternation of generation between diploid sporophyte and haploid gametophyte. Helps the largest brown algae is also a conspicuous seaweed.

One of the following statement is true regarding Basidiomycota:

(a) They are most important source of antibiotics

(b) They have known sexual stage

(d) The vast majority of spores are formed asexually

The sprouting gametophyte of a moss consists of a filamentous, branched structure called:

(a) Mycelium (b) Hyphae

Hint: Protonema is a filamentous, branched structure that forms the earliest stage (Haplod phase) in the life chycle of mosses. When a mos first grows from a spore, it grows as a protonema which develops into a leafy gametophore.

Which seedless plant is a renewable source of energy ?

(a) Club mass (b) Horsetail

Hint: Sphagnum moss or peat moss is a renewable source of energy. When peat moss (sphagnum take up and hold large quantities of water. Sphagnum or peat moss is a renewable source of energy because remains of this moss becomes peat which is widely and extensively used as fuel (energy source).

Shagnum is also called as:

(a)Sphenopsida (b) Peat moss

Double fertilization occurs is:

(a)Pinus (b) Ferns

Hint: Double fertilization is the charactersitics of angiosperms like “maize”.

In double fertilization two sperms zygote or oosphore and the other sperm fuses with endospore mother cell to form fusion nucleus.

Which of the following nutrient is incorrectly paired with its function in plant?

Iron – cytochromes and chlorophyll synthesis

Molybdenum – ell permeability

Cobalt – required by nitrogen fixers

Calcium – formation of cell wall

Hint: Molybdenm (M0) is involved in nitrogen fixation and nitrate reduction.

Macronutrients are:

(a)K-Mg-N-P (b) Cu-Mg-Mn-S

Which cells are responsible for the movement of sugar as per mass flow hypothesis?

Tracheids, vessel elements

Tracheids, companion cells

Vessel elements, companion cells

Companion cell, sieve-tubes

Hint: Companion cell and sierra tubes are the cells responsible for the movement of sugar as per the pressure flow or mass flow hypothesis.

After buying green bananas or unripe avocadoes, they can be kept in a brown bag to ripen. The hormone reieased by the fruit and trapped in the bag is probably:

Abscisic acid

Cytokinin

Ethylene

Gibberellic acid

Hint: Ethylene a gaseous hormone is involved in fruit ripening.

An acinus is composed of:

(a) 10-20 Acinars

(b) 20-40 Acinars

(d) 30-40 Acinars

If a new born baby possesses, carboxy hemoglobin instead of oxhymoglbin, the condition may be;

(a) Embolism (b) Artherosclensis

Of 100 ml of Arterial blood, oxygen provided to the tissues is:

(a) 2 ml (b) 3 ml

Otitis media is an inflammation of which part of the body?

(a) Brain (b) Middle ear

Hint: Otitis media is an inflammation of the middle ear.

Sarcolemma is the membrane around ?

Bone

Joins

Muscle flber

Heart

Hint: Each muscle fiber is surrounded by a membrane called sarcolemma.

If medulla oblongata of a person brain is damaged which of the following processes will be disturbed?

(a) Thinking (b) Sleep

Hint: If medulla oblongata of a person brain in damaged special reflexes such as heart beat, respiratory movements salivary secretions, swallowing vomiting, coughing and sneezing processes will be disturbed.

Nervous system that prepares itself fight of flight:

(a) Para Sympathetic (b) Sympathetic

In which of the following disorder the structure and function of normal spinal cord is damaged?

(a) Arthritis (b) Sciatica

Hint: Menigitis in characterized by inflammation of the protective membranous covering of the brain and spinal cord the meanings.

The deficiency of calcitonin result in ?

Bone formation

Kidney stone

Hyperthyroidism

Hypothyroidism

Acetabularia mediterranea is:

(a) A fungus

(b) An algae

(d) A prokaryote

Implantation of embryo takes place in which week of pregnancy?

(a) 1st (b) 2nd (c) 3rd (d) 4th

Hint: Implantation takes place in the second week of pregnancy.

In a mating between two individuals that are heterozygous for a recessive lethal allele. What genotypic ratio (homozygous domiant: heterozygours: homozygous recessive) would you expect to observe in the offspring?

(a) 1:2:1 (b) 3:1:1

If black and white true breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of?

(a) Dominance (b) Codominance

(d) Incomplete Dominance

ABO blood groups are an example of:

(a) Multiple alleles and incomplete dominance

(b) Codominance and incomplete dominance

(d) Multiple alleles and condominance

XX-XY types of sex determination pattern is present in which of the following organisms?

(a) When 1A moves through a voltage of 1V

(b) When a power of 1 W is used for 1 s

The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the basis of the finding that:

Radioactive phage were found in the pellet

Radioactive phage were found in the supernatant

Radioactive sulfur was found inside the cell

Radioactive phosphorus was found in the cell

Hint: Radioactive phosphorus was found in the cell show that DNA act a a hereditary material.

DNA polymerase adds nucleotide .to the 3’ end of the primer so the direction of replication will be ?

(a) (b)

(d) end of template strand to the end of the primer

Hint: DNA polymerase III cannot initiates replication process it can add a nucleotide on to a preexisting 3-OH group and therefore needs a primer to perform its polymerase activity. It always adds nucleotide at 3 end of primer so the direction of replicatiob becomes 5 to 3 end.

How many nucleotides are 12 mRNA codons?

Hunt: Single genetic code is consist of 3 nucletiodes so mRNA contains 12 codon have 36 nucleotides.

Which of the following is a non-sense codon?

UGA

UAU

CAU

GAU

Hint: UGA VAA and UAG are non sense codon or stop codon.

If a disorder is not present in a child family but the fetus itself is infected before birth,it is known as?

Somatic mutation

Hereditary mutation

Germ line mutation

De novo mutation

Hint: Mutation that occur only in an egg or sperm cell or those that occur just after fertilization called new mutation or de novo mutation.

What will happen if a nucleotide is deleted from a gene having 9 nucleotides in its transcriptional unit?

Change in phenotype

No change in phenotype

Synthesis of 3 amino acids

Synthesis of 4 amino acids

Hint: Change occur in phenotype when a nucleotide in deleted from a gene having 9 nucleotides in its inscriptional unit.

Identify the mismatch pair in the following.

A) Cyanobacteria- primary producer

Grasshopper-primary consumer

Fungi-decomoposer

Zooplankton-secondary consumer

Hint: Zooplankton are primary consumer.

Which of the following is a suitable vector to be incorporated with a large external DNA fragment?

Small size vector

Large size vector

Large size vector with no origin of replication

Small size vector with no origin of replication

Hint: When origin of replication is mission bacteria cannot increase the number of its plasmid copies.

If one of the following component is missing bacteria can not increase the number of its plasmid copies ?

Antibiotic resistant gene

Origin of replication

Cloning site

Ligases enzymes

Hint: When origin of replication is missing bacteria cannot increase the number of its plasmid copies.

Identify in which of the following the genetic information is catalyzed using reverse transciptase ?

Protein → DNA

RNA → DNA

DNA → RNA

RNA → Protein

Hint: RNA is converted to DNA by reverse transcriptase.

What will happen if a vector (plasmid) is cut with a different restriction enzyme which cuts the external DNA to be incorporated in the vector (plasmid) ?

Ligation

No ligation

Tight ligation

Cloning

Hint: No ligatin will happen if a vector (plasmid) is cut with a different retraction enzyme which cuts the external DNA to be incorporated in the vector (plasmid).

If the primer annealing temperature is increased to 94℃. What will happen?

Annealing

Extension

No annealing

Primer-dimer formation

Hint: If the primer annealing temperature is increased to 940C No anneling will occur because annealing process need 540C to 2 minute.

For the location/detection of a gene in a DNA library which of the following is used?

Primer

Probe

Restrictionn enzyme

Taq polymerase

Hint: Probe is used for the location and detection of a gene in a DNA library.

Under UV illumination , DNA bands are seen in agarose due to which of the following ?

Agarose

Charge of DNA

Fluorescent dye

Radioactive dye

Hint: Under UV illuminator DNA bands are seenin agarose geldue fluorescent dye.

For callus formation, auxin and cytokinin are required in which ratio?

(a) Balanced

(b) Only Cytokinin required

(d) Only auxin

Hint: A balance of both Auxin and cytokinin will often produce an unorganized mass of cells, the cellus.

For which purpose myeloma cells (cancerous B.lymphocytes) are used in the production of monoclonal antibodies?

(a) Increased rate of cell division

(b) Immunization with antigen

(d) As nutrient in media

Hint: Monoclonal antibodies are typically made by fusing myeloma cells (cancerous B-lymbphocytes) with the spllen cells from a mouse that has been immunized with the desired antigen.

Which of the following vaccine has least side effects

(a) Attenuated vaccine

(b) Killed vaccine

(d) Toxoid vaccine

Hint: Killed vaccine has least side effect.

Approximately how much calories of free energy is stored in plant biomass for every mole of C_(0^2 ) fixed during photosynthesis ?

(a) 110 (b) 112

The largest number of molecules are present in the:

a. 22g of CO2 b. 64g of O2

c. 14g of N2 c. 90g of H2SO4

Hint: 64g of O2 contains max no of moles hence H will contain max molecules.

Choose the correct arrangement of the various regions of the electromagnetic spectrum in terms of wave lengths.

Iτ>uv>visible>microwave>radio freuqency

MicrowaveIτ>uv>visible>>radio freuqency

Radio frequency > microwave > Ir > visible > uv

Visible > Ir > uv > microwave > radiowave

The bond energy of a H2 molecule H_2→2His:

(a) 436 Kj/mol (b) 40.7 Kj/mol

Considering the molecule orbital theory (MOT) choose the correct relative energies order.

(a)

(b)

(c)

(d)

A container is having mixture of gases, 20% ammonia, 30% hydrogen and 50% oxygen under 50a.t.m pressure choose the correct partial pressure respectively.

(a) 10 atm, 25 atm, 15 atm

(b) 10 atm, 15 atm, 25 atm

(d) 15 atm, 25 atm, 10 atm

At standard conditions 45 liters of oxygen gas weights about 6g, where as 45 liters of hydrogen weights only about 4g. Which gas defuse faster? Calculate how much faster.

(a) Hydrogen 4O2 (b) Hydrogen 2O2

Amorphous solids are made by fusing silicates with:

Boric acid

Aluminum oxide

Phosphorus pent oxide

All of the above

Hint: Science, society relationship

Choose the anisotropic behavior

(a) Coefficient of thermal expansion

(b) Lattice energy

(d) Infrared Spectroscopy

The compound with most exothermic lattice energy is:

CaCl2

K2O

CaO

BaCl2

Excess of Ag2CrO4 was dissolved in distilled water its solubility was found to be 1.3 x 10-4mol dm-3 what is the solubility product:

(a) Ksp = [1.3 x 10-4]2 [1.3 x 10-4] (b) Ksp = [2.6 x 10-4]2 [1.3 x 10-4]

Choose acids that are showing leveling effect.

i) HCle ii) Hl iii) HCl iv) HF

i & iv

i, iii & iv

iii & iv

i, ii, & iii

Hint: Leveling effect can be shown by only strong acid. Weak acid can never show leveling effect because they do not completely ionize in water.

Ka values of some compound are given below select the correct order of acidic strength:

(a) ROH > H2O > C6OH > RCOOH (b) C6H5OH > H2O > ROH > RCOOH

Hint: Ka ∝ strength of acid.

10.0dm3 gas cylinder containing mixture of various gases 50cm3 of nitrogen gas is in the mixture what is the concentration of N2 gas in part per billion (ppb):

(a)50/1000×〖10〗^9

(b) 50/10000×〖10〗^9

(d) 50/1000×〖10〗^6

Colloidal particles can be separated by using:

Ordinary filter paper

Coarse filter paper

Fine filter paper

Extremely fine filter paper

Choose the incorrect statement about corrosion.

(a) Corrosion cannot be eliminated completely.

(b) Employing modern techniques corrosion can be completely eliminates.

(d) The presence of acidic oxide in the environment can accelerate the process of corrosion.

What is the product when chlorine gas is passed over element silicon in powdered state on heated it produce colorless liquid having formula?

SiCl2

SiCl4

SiCl5

SiCl

Hint: reaction with chlorine

The compound with purely acidic is:

None of the above

Chlorine gas dissolve in water to some extent to give:

(a) Yellow colored solution

(b) Greenish colored solution

(d) Colorless solution

Phosphorus (white) catches fire in air and burns with the formation of white smoke the product formed is:

(a) Phosphorus (iii) oxide

(b) Phosphorus (v) oxide

(d) Both (a) & (b)

Compound resistant to thermal decomposition is:

(a) Li2CO3

(b) NaNO3

(d) Na2Co3

Hint: Na2CO3 is stable thermally due to greater ionic characters.

----------

Coordination number six complexes having d2Sp3 hybridization exist in:

(a) Tetrahedral shape

(b) Square planar shape

(d) Octahedral shape

In movies during fighting a blood red solution is using as an artificial blood. Which of the following complex ion is used for this solution ?

[Fe(H_(2^O ) )_6 ]^(+^2 )

[C_u(NH_3 )_4(H_(2^O ) )_2 ]^(+2)

????????

Hint: Testing for iron III ions with thiocynanate ions.

Arrange the following oxide of chromium in increasing acidic character:

(a) CrO>Cr2O3>CrO3

(b) CrO3>Cr2O3>CrO

(d) CrO3>CrO>Cr2O3

Hint: But question is same what wrong because it is decreasing order of acidity.

Many hexaaqua complex ions can undergo reaction with water as given below: The reaction is classed as:

(a) Redox reaction

(b) Acid base reaction

(d) Substitution reaction

Hint: These re not redox because during reaction no change in oxidative state.

Consider the following reactions.

C2H4(g) + H2(g) C2H6(g)

N2(g) + 3H2(g) 2NH3(g)

Choose the catalysts employed for the reaction.

(a)Ni for both the reactions (i) and (ii)

(b) Fe2O3 for both the reactions (i) and (ii)

(d) Fe2O3 for the reaction (i) and Ni for (ii)

When compound with undergo substriction reaction faster than benzene?

Propene react with hypochlorous acid to form

(a) (b)

Alkene + O3 → Ozonide Zn+H2O Propanone + Propanal the IUPAC name of the alkene is:

(a) Hex-2-ene (b) Hex-3-ene

(d) 2-methyl pent-2-ene

KOH(calcohollc) + CH3C(CH3)2 CH2Br(i) → The reactants in the condition given will undergo:

(a) Nucleophilic substitution reaction

(b) Elimination reaction

(d) None of the above

Hint: When double bond is formed there is always E.R.

The number of chiral centres in a molecule of 5-bromo 3-chloro hexan-2-01 is /are:

Benzene gives more stable product when undergo:

(a) Nucleophilic addition reaction

(b) Oxidation reaction

(d) Electrophilic addition reaction

Hint: Electrophilic substitution products are aromatic and stable.

Which group when attached to benzene will increase its reactivity :

The IUPAC name of the compound given below:

(a) M- nitrobenzene acid

(b) O- nitrobenzene methanoic acid

(d) None of the above

AlBr3 which is used in the alkylation of benzene possess the properties of:

(a) A catalyst (b) A Lewis Acid

(d) All of the above.

O〖H^-〗_((alocholic))+CH_3 〖(CH_2)〗_2 Br→Prodcut the nature of OH^-in the above reactgion is:

(a) Nucleophile (b) Lewis base

Sheft’s base

Diazonium sait

Amide

Imine + Amide

Choose the mercaptans of the following.

Four beakers containing ethanol, ethanol, propanane and phenol separately. Aqueous bromine was added to each beaker. A white ppt was produced in one beaker. This beaker contain:

Ethanol

Phenol

Ethanals

propanone

The compound which can from hydrogen bond with water is:

a. CH3-O-CH3 b. CH3-CH2-OH

c. CH3-CH2-NH2 d. All of these

The oxidation of pent -2-one (2-pentanone) with nascent oxygen gives:

(a) Propanal (b) Propanoic acid

What is the name of the carboxylic acid given below?

HOOC (CH2)3COOH

(a) Propane dioic acid

(b) Pentane dioic acid

(b) Pentane dicarboxylic acid

(d) Propane dicarbosylic acid

Hint: Carboxylic acids containing two carboxylic groups are called dioc acids (IVPAC).

When the sperm count is high, inhibit hormone release increases which:

(a) Inhibits anterior pituitary release of follicle stimulating hormone

(b) Increase anterior pituitary release of follicle stimulating hormone

(d) Increase release of luteinizing hormone

Hint: When the sperm count is high inhibit release increase and it inhibits anterior pituitary release of FSH and hypothalamic release of GnRH. When sperm count falls inhibin secretion declines steeply because inhibin hormone is produced by the sertoli cells and serves to control the spermato gensis at normal rate.

Choose the true product of the following reaction?

CH3C = N + 2H2O + HCl →

(a) CH3 COOH + NH3

(b) CH3 COOH + NH4 Gl

(d) CH3 CONH2

The compound which cannot be hydrolyzed by water is:

(a) CH3 – CH2 – C - Br

(b) CH3 – C – O – C – CH3

(d) None of the above

Hint: All the acid derivative can be converted back into the corresponding acid by hydrolysis.

Coagulation of proteins may be caused by:

(a) Heat (b) Change in PH

(d) All of the above

What type of hybridization is/ are present in Hex-4 ene 1-yne:

a. Sp2 b. Sp

c. Sp and Sp2 d. Sp.Sp2.Sp3

The existence of H_2^2 is not possible because

(a) It would be disproportion

(b) It would be radio active

(d) No H – H bond would form

Catalytic converter reduces the emission of

(a) Unburnt hydrocarbons

(b) CO (c) NO

(d) All of the above

Which of the following radiations cannot cause excitation in a molecule:

(a) Red Colour

(b) Green Colour

(d) None of the above

Hint: Only visible light (VIBGYOR) can cause excitation in a molecule.

Which ion is stable in aqueous solution?

Sc3+

Li2+

Ba3+

Hint: Sc+3 has noble gas electronic configuration which is most stable.

The compound which can from hydrogen bond with water is:

CH3-O-CH3

CH3-CH2-OH

CH3-CH2-NH2

All of these

Which polyatomic anion is unstable in solution.

(a) BO-2 (b) SnO2-3

Choose the molecule that could not be represented by single electronic structure formula:

(a) CH4 (b) H2O

Select the electronic configuration which can form easily (-3)oxidation state:

(a) 1S22S2SP6SP23P1

(b) 1S22S2SP63S23P1

(d) 1S22S22P63d24P2

50.0 cm3 of a KOH solution is titrated is the phenolphthalein end point with 7.50 cm3 of 1.0 HCl, The concentration of KOH.

(a) 7.5M (b) 0.75M

Which of the following is an acid?

(a) OH- (b) PH3

Select the wrong statement about absorption.

(a) The phenomenon of accumulation of a gas or liquid at the solid surface is called absorption.

(b) The process of absorption is selective in nature

(d) Absorption increase with decrease in temperature

Hint: Absorption increase with decrease in temperature.

Charge is distributed uniformly on the surfaced of large flat plate the electrical held 2cm from the plate is 30 N/c what is the electrical field at 4cm from the plate.

(a) 120 N/c (b) 30 N/c

Which polyatomic anion is insatiable?

(a) B_4 B_7^(2-) (b) S_4 O_6^(2-)

Which experimental technique reduces the systematic error of the quantity being investigated?

(a) Adjusting an ammeter to remove its zero error before mesuering a current.

(b) Measuring several intermodal distances on a standing wave to find the mean intermodal distance.

(d) Timing a large number of oscillations to find a period.

A value of the acceleration of free fall on Earth is given as (10±2) ms-2. Which statement is correct.

(a) The vale is accurate but not precise

(b) The value if both precise and accurate

(d) The value is precise but not accurate.

In a sample electrical circuit the current in a resistor is measured as (2.50 ± 0.05) mA. The resistor is marked as having a value of 4.7Ω ± 2%. If these values where used to calculate the power dissipated in the resistor, what would be the percentage uncertainty int eh value obtained?

(a) 2% (b) 4%

If |a|+|b|=|a|-|b| for two non zero vectors and than it hodl that

(a) – a and b are perpendicular

(b) – a and b are parallel

(d) a d b are non coplaner

The vector P make 1200 with x-axis and the vector. Q make 300 with y-axis their resultant is:

(a) P + Q (b) P – Q

The sum of 2 forces acting at a point is 16N. if the resultant force is 8N and its direction is perpendicular to minimum force, then the force is:

(a) 6N and 10N (b) 8N and 8N

If x components of a vector is √3 and y component is 1, then the angle made by the vector along x axis is:

(a) 600 (b) 300

A body of mas 2 kg collides with a wall with speed 100 ms-1 and rebounds with the same speed the force exerted on the wall is 2 x 104 the time of contact is:

(a) 1/50 sec (b) 1/25sec

A person, travelling on a motorway a total distance of 200km, travels the frist 90km at a average speed must be obtained for the rest of the journey if the person is to reach the destination in a total time of 2 hours 0 minutes?

(a) 110 km h-1 (b) 120 km h-1

A man walks for some time with velocity v due east. Then he walks for same time with velocity v due north. The average velocity for the man is:

(a) 2v (b) √2v

A boy walks for some time with velocity v due east. Then he walks for same time with velocity v due north. The average velocity for the man is:

(a) 2.5 (b) 2.4

An object of mass “m” travellin with speed “v” has a head-on collision with another object of mass “m” travellin with speed “v” in the opposite direction. The two objects stick togeter after the collision. What is the total loss of kinetic energy in the collision.

(a) 0 (b)

Hint: if the masses of two bodies are same and their velocities are also same and they are moving in opposite direction then this means head on ineleastic collision takes place and in inelastic collision K.E is not conserved so both will loose their K.E and total loss will be = ½ mv2+1/2mv2 = mv2

The range of projectile is the same for two angles which are mutually.

(a) Perpendicular (b) Supplementary

A projectile is projected with a kinetic energy K, range is R it will have minimum kinetic energy after covering a horizontal distance equal to.

(a) 2.25R (b) 0.5R

An engine pumps out 40 Kg of water in one second. The water comes out vertically upwards with a velocity of 3ms-1, the power of engine in kilowatt is:

(a)1.2 kw (b) 12 kw

Two boys weighing in the ration 4:5 goes up stair taking time in the ratio 5:4. The ratio of their power is:

(a)1 (b) 16/25

The energy stored in the spring of watch is:

(a ) Kinetic energy (b) Electric energy

A circular disc of mass M and radius R is rotating about its axis with uniform speed v its kinetic energy is:

(a) Mv2 (b) ½ MV2

Moment of inertia of an object does not depend upon:

(a) Mass of object (b) Mass distribution

A body of mass 10Kg is hanging from a spring balance inside a life. If the life falls with an acceleration 10ms-2, then what will be the reading of spring balance:

(a) Zero (b) 2.5 Kg

A metal sphere of radius r is dropped into a tank of water. As it sinks at speed v, it experiences a drag force F given by F = k r v, where k is a constant. What are the 5l base units of k?

Kg m2 s-1

Kg m2 s-2

Kg m1 s-1

Kg m s-2

A parachutist is falling at constant (terminal) velocity, which statemnte is not correct?

(a) Gravitational potential energy is covered into kinetic energy of the air.

(b) Gravitational potential energy is covered into kinetic of the parachutist.

(d) Gravitioanl potential energy is converted into thermal energy of the parachutist.

Eight drops of water, each radius 2 min are falling through air at a terminal velocity of 8cm s-1. If they coalesce to form a single drop, the terminal velocity of the combined drop will be:

(a) 8cms-1 (b) 16cms-1

In a stream lined flow, the velocity of the liquid in contact with the containing vessels is:

(a) Zero (b) Minimum but not zero

Two bodies are dropped from different heights h1 and h2. The ratio of the items taken by them to reach the ground will be

(a) (b)

The frequency of a seconds pendulum is:

(a) 1Hz (b) 2 Hz

The time period of a simple pendulum is 2 seconds. If its length is increased by 4 times , then its period becomes :

16 s

12 s

8 s

4 s

The kinetic energy and potential energy of a particle executing simple harmonic motion will be equal for the displacement (where x2 is the amplitude)

(a) √(xe&2/3) (b) x_2/2

The acceleration of free fall on the Moon is one sixth of that on Earth. On earth, it takes time ‘t’ for a stone to fall from rest a distance of 2m. what is the time taken for a stone to fall from rest a distance of 2m on the Moon?

(a) 6t (b) t/6

A particle executes SHM along a straight line. Its amplitude is A. The potential energy of the particle is equal to the kmetic energy, when the displacement of the particle from the mean position is:

(a) Zero (b) + A/2

In S.H.M., the fraction of kinetic energy to total energy when displacement is one-half of the amplitudes is:

(a) 1/8 (b) ½

A wave of amplitude 20mm has intensity I, another wave of the same frequency but of amplitude 5mm has intensity I what is 1z/1z?

(a) 2 (b) 4

In a stationary wave the distance between consecutive antinodes is 25 cm. if the wave velocity is 300 ms-1 then the frequency of the wave will be:

(a) 150 Hz (b) 300 Hz

When a ray of light enters a glass slit from air:

(a) Its wavelength decreases

(b) Its wavelength increases

(d) Its frequency decreases

The speed of sound in air at 300 m^((-1)/5). If the air pressure become 4 times then the speed of the sound will be:

(a) 150(-1)/5 (b) 300(-1)/5 (c) 600(-1)/5

Laplace corrected Newton’s formula for the velocity of sound in gases, because the sound propagates:

(a) As longitudinal waves

(b) Adiabatically

(d) Under isobaric conditions

A tuning fork a produces 4 beats/ second with another tunning from b of frequency 280Hz. Whe form a is loaded with a little wax the beat frequency change to 2. The frequency of fork a before loading is:

(a) 292 Hz (b) 284 Hz

Standing waves are produced in 10m long stretched stretcher string. If the string viberates in 5 segments and wave velocity is 20 m (-1)/5. Its frequency is:

(a) 2 Hz (b) 4 Hz

In young’s double slit experiment with sodium light, the slits are 0.589 m apart. What is the angular width of the third maximum given = 589 nm

(a) sin-1 (3x10-6)

(b) sin-1 (3x10-8)

(d) sin-1 (0.33x10-8)

Monochromatic green light of wave length 5x10-7 illuminates a pair of slites 1mm apart the separation of bright lines on the interference pattern formed on a screen 2m away is:

(a) 0.25mm (b) 0.1mm

Light of waves 500×10^(-9)m falls normally on a plane diffraction grating having 8×10^(+3) lines per cm. The minimum number of images seen is:

(a) 3 (b) 4 (c) 5 (d) 1

The refractive index is equal to the tangent of the angle of polarization. It is called:

Brewster’s Law

Malu’s Law

Bragg’s Law

Grimaldi’s Law

Which of the following cannot be polarized ?

(a) Radio waves

(b) Ultraviolet rays

(d) Ultrasonic waves

A Carnot engine working between 200 k and 400 k has work output of 600 J are cycle. How much heat energy is supplied to the engine from the source in each cycle.

1400 J

1200 J

1700 J

1300 J

When 1012 electrons are received from a neutral metal sphere. The charge on the sphere becomes:

(a) 0.16c (b) -0.1c

Before a thunderstorm, the hairs on your head sometimes stand on end. A hair with mass 0.50 mg and charge 1.0 pC is supported by a force due to an electric field. Ignore any forces other than the weight of the hair and the electric force. What is the electric field strength ?

4.9×10^3 N C^(-1)

4.9×10^5 N C^(-1)

4.9×10^6 N C^(-1)

4.9×10^9 N C^(-1)

How much kinetic energy will be gained by an -particle ion going from a point at 70 V to another point at 50 V?

(a) 40 e V (b) 40 KeV

The potentials of the two plates of a capacitor are +10V and -10V. The charge on one of the plates is 40C. The capacitance of the capacitor is:

(a) 2 F (b) 4 F

A proton is about 1840 tims heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be:

(a) 1840keV (b) 1/1840 keV

When will 1 C of charge pass a point in an electrical circuit?

(a) When 1A moves through a voltage of 1V

(b) When a power of 1 W is used for 1 s

(d) When the current is 10 A for 10 s

The resistance of a device is designed to change with temperature. What is device ?

(a) A light-dependent resistor

(b) A potential divider

(d) A thermistor

A cell of internal resistant 2.0 and electromotive force (e.m.f.) 1.5 V is connected to a resistor of resistance 3.0 resistor

(a) 5 V (b) 1.2 V

Two lamps are connected in series to a 250 v power supply. One lamp is rated 240 v, 60 w and the other is rated 10 v, 2.5 w. Which statement most accurately describes what happens ?

Both lamps light at less than their normal brightness.

Both lamps light at their normal brightness.

That bis time needs a wise uses.

To using time in a wisely manner.

Two lamps are connected in series to a 250 V power supply. One lamp is rated 240v, 60w and the other us rated 10v, 2.5w. which statement most accurately describes what happens?

Both lamps light at their normal brightness87.5%

Only the 240 V lamp lights

-1.6x1019C

The 10 v lamp blows

A radioactive substance has a half life of 60 minutes. During 3 hours the percentage of the material that decayed would be.

12.5%

8.5%I enjoy ____ tennis.

to play

play

25.1%

HINT: During 3rd half life decoyed substance= 87.5% undecayed = 12.5%.

I enjoy ______ tennis.

To play

To playing

playing

to playing

The path ____ paved, so we were able to walk through the path.

Had been

Was

Has been

Being

Choose the correct sentence.

Naila was so exhausted that on she lain down for a nap.

Naila was so exhausted that on she laid down for a nap.

Naila was so exhausted that on she was lying down for a nap.

Naila was so exhausted that on she will lay down for a nap.

He asked me what my name was and what I did.

He said to me, “what was my name and what did I do?

He said to me, “what is your name and what did you do?

He said to me, “what my name was and what did i do”

He said to me, “what his name was and what did he do?

Choose the correct sentaence.

How long are you wearing glasses?

How long do you wear glasses?

How long are you wear glasses?

How long have you been wearing glasses?

Choose the antonym for the word “ABROGATE”.

Transgress

Signify

Alleviate

Ratify

Choose the correct sentence.

The Village folk were present.

The Village folk was present.

The Village folks were present.

The Village folks was present.

While the city has earned record revenue this year____ will behind in exports.

It still lag

It still lags

It lag still

It lags still

Every person must learn_______.

That how wisely his time can be used.

To make wise his of his time.

that his time needs a wise uses.

to using his time in a wisely manner

he is busy, would you like to leave a message? Said the assistant.

(a) The assistant told that he is busy and asked me to leave a message

(b) The assistant told that he was busy and ask me to leave a message

Choose the antonym of the word.

(a) Tender (b) Sheepish

Why did your supervisor take such a strong disciplinary action when you were innocent?

(a) Why has such a strong disciplinary action taken by your supervisor when you were innocent ?

(b) Why was such a strong disciplinary action being taken by your supervisor?

(d) Why such a strong disciplinary action was taken by your supervisor when you were innocent?

That a driver swerves in order to avoid and accident can be proven by examining the marks on the pavements.

(a) Stops quickly

(b) Turns sharply

(d) Goes backward

Though aleem is poor, _____ he is honest.

(a) But (b) Nevertheless

Choose the synonym for the word “ABRIDGE”.

(a) To make a bridge (b) Shorten

It is a general perception that doctors have a callous disregard for me feeling of others: (the underlined word nearly means)

(a) Respectable (b) Careful

Choose the synonym for the word “ATTENUATE”.

(a) Appear (b) Be absent

The rules forbid passengers to cross the railway line.

(a) Passengers were forbidden by the rules to coos the railway line

(b) Passengers are being forbidden by the rules to coos the railway line

(d) Passengers are forbid by the rules to coos the railway line

A thirsty buyer purchases fruits and vegetables in season. (The underlined word nearly means)

(a) Careful (b) Professional

The feminine of MILKMAN is.

(a) Milk girl (b) Milk maid

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