BANK OF MCQs

Physical optics 1)        The locus of all points in a medium having    the same phase of vibration is called    a) Crest                              b) Trough    c) Wavelength                d) Wave front D   2)        The distance between two consecutive wave    fronts is called:    a) Time period                  b) Frequency    c) Wavelength                   d) Displacement c   3)  ...