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Odd Rotations of a Mirror ...

We all know that on rotation of a mirror ( about the Z axis in the figure ) the reflected rays deviate by angle twice that of rotation... What happens if the mirror is rotated about the X axis ( the mirror is the Z-X plane , the vertical axis is Y axis , incident rays are falling on it along the X-Y plane )? That is find the angle between the initial reflected reflected ray and the final reflected ray in terms of the angle rotated by the mirror and the angle incidence(which is same in both the cases).

Note by Sanjay Banerji
3 years, 8 months ago

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