Question

If we gradully increase the angle of incidence of a ray of light passing through
prism, then ____

OPTIONS:

a) the angle of deviation goes on decreasing

b) the angle of deviation decreases but after certain value of incident angle,
deviation angle increases.

c)the angle of deviation goes on increasing

d) the angle of deviation increases but after certain value of incident angle,
deviation angle decreases​

Answer 1

d) the angle of deviation increases but after certain value of incident angle,

deviation angle decreases

Answer 2

Answer:

b) is a correct answer.

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