Physics · Light and Reflection

A plane mirror is arranged horizontally. A ray of light is incident on its centre from a fixed source at an angle of 45°. The mirror is rotated about its centre anticlockwise by 10°. The reflected ray is rotated by .

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anticlockwise, 20°

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A plane mirror is arranged horizontally. A ray of light is incident on its centre from a fixed source at an angle of 45°. The mirror is rotated about its centre anticlockwise by 10°. The reflected ray is rotated ________ by ________.