Question

15) In newton's ring system, the Centrs is bright, is the ring system
Observed in reflected or transmitted light ? Justify your answer.​

Answer 1

Answer:

The centre of the ring dark in Newton’s Rings experiment with reflected light is dark because at the point of contact the path difference is zero but one of the interfering ray is reflected so the effective path difference becomes λ/2 thus the condition of minimum intensity is created hence centre of ring pattern is dark.