MCQ
Find the angle of deviation (given diagram)
- A$180 - 2\theta$
- B$90 - \theta$
- ✓$ 2\theta$
- D$360 - 2\theta$
✓
Answer
Correct option: C.
$ 2\theta$
c
Deviation $(s)$
Deviation $(s)$
$=180^{\circ}-2 \mathrm{i}$
$=180^{\circ}-2\left(90^{\circ}-\theta\right)$
$=2 \theta$
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