Physics-
General
Easy
Question
A ray of light strikes a plane mirror at an angle of incidence 45° as shown in the figure. After reflection, the ray passes through a prism of refractive index 1.50, whose apex angle is 4°. The angle through which the mirror should be rotated if the total deviation of the ray is to be 90° is:
clockwise
- anticlockwise
clockwise
anticlocwise.
clockwise
anticlockwise
clockwise
anticlocwise.
The correct answer is: anticlockwise
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