Question

If the angle of incidence in the denser medium is equal to critical angle, then the angle of refraction in the rarer medium is

a. 60 degree

b. 90 degree

c. 0 degree

d. 45 degree​

Answer 1

Answer:

Correct option is

C

90

o

as shown in the fig angle of incidence in denser medium increases angle of refraction also increases.

When angle of incidence equals the critical angle, the angle of refraction will be 90

o

. and if further increase in the incidence angle light undergoes reflection.

Explanation:

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