Question

A ray of light falls on a plane mirror. When the mirror turned , about an axis at right angle to the plane of the mirror through ${20}^0$ , the angle between the incident and new reflected ray is ${45}^0$ . Find the angle between the incident ray and original reflected ray

• A. ${15}^0$
• B. ${30}^0$
• C. ${45}^0$
• D. ${60}^0$

Answer 1

The correct option is C ${45}^0$

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