Question

An incident ray traveling in a slower medium strikes a boundary with a faster medium. What happens when its angle of incidence is greater than the critical angle?
A.The refracted ray makes an angle of 90°.
B.There is total internal reflection in the faster medium.
C.There is total internal reflection in the slower medium.
D.The reflected ray makes an angle of 90°.
E.The reflected ray makes an angle equal to the critical angle.

Answer 1

As it is travelling initaially in slower medium (call it 1) and then goes to faster medium(callit2)

n1<n2.

As critical angle is exceeded, it will undergo TIR and come back in slower medium.
answer is C.

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