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General
Easy
Question
A ray of light strikes a plane mirror M at an angle of 45° as shown in the figure. After reflection, the ray passes through a prism of refractive index 1.5 whose apex angle is 4°. The total angle through which the ray is deviated is
- 90°
- 91°
- 92°
- 93°
The correct answer is: 92°
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