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When mirror is rotated through an angle ...

When mirror is rotated through an angle `theta`, a reflected ray from it moves through an angle of

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To solve the problem of how much the reflected ray moves when a mirror is rotated through an angle \( \theta \), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Setup**: - Consider a plane mirror and a ray of light incident on it. The angle of incidence is denoted as \( \alpha \). - The normal to the mirror at the point of incidence is perpendicular to the surface of the mirror. ...
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