MCQ
Under minimum deviation condition in a prism, if a ray is incident at an angle $30^o$, the angle between the emergent ray and the second refracting surface of the prism is......$^o$
- A$0$
- B$30$
- C$45 $
- ✓$60$
✓
Answer
Correct option: D.
$60$
d
(d) In minimum deviation $i = e = {30^o},$
(d) In minimum deviation $i = e = {30^o},$
so angle between emergent ray and second refracting surface is
${90^o} - {30^o} = {60^o}$
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