MCQ
A ray passes through a prism of angle $60^o$ in minimum deviation position and suffers a deviation of $30^o $. What is the angle of incidence on the prism......$^o$
- A$30$
- ✓$45$
- C$60$
- D$90$
✓
Answer
Correct option: B.
$45$
b
(b) $i = \frac{{A + {\delta _m}}}{2}$$ = \frac{{60^\circ + 30^\circ }}{2} = 45^\circ $
(b) $i = \frac{{A + {\delta _m}}}{2}$$ = \frac{{60^\circ + 30^\circ }}{2} = 45^\circ $
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