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- A light ray is an incident on a plane mirror at an angle of 300 with the horizontal. At what angle with horizontal must plane mirror be placed in its path, so that it becomes v
A light ray is an incident on a plane mirror at an angle of 300 with the horizontal. At what angle with horizontal must plane mirror be placed in its path, so that it becomes vertical upward after reflection.
Option: 1
600
Option: 2
450
Option: 3
300
Option: 4
400
Answers (1)
To make reflected light vertical it should be rotated by an angle of 600 in an anticlockwise sense. So the mirror should be rotated by in the same sense.
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