Answer to Question #164545 in Optics for Bawe Bilanyuy

Question

 (i.) State the conditions necessary for two sources of light to produce interference.

    (ii.) How are these conditions satisfied in Young's double-slit experiment?

Answer 1

Answer

i)as below The conditions for the interference of light are as under.A. Light source should be monochromatic.B. Both the waves should be of same frequency.C. Both the waves should be travel in the same direction.(iv) The amplitude of both the waves should be nearly same or equal.(ii) The condition for constructive interference is that the phase difference between the two waves should be an even integral multiple of π or 1800. For destructive interference, the phase difference between the two waves is an odd integral multiple of π or 180°. So interference is need to satisfy YDSE.