Physics · Ray Optics
A beam of light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. The beam is reflected back as a spot on a scale placed just above the source L. When the mirror is rotated through a small angle θ, the spot of light is found to move through a distance y on the scale. The angle θ is given by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1x2y
- 2yx
- 3y2x✓
- 4xy
Correct answer
y2x
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