1. A light ray is incident on a plane mirror
at an angle of 30° with the horizontal. At what
angle with horizontal must a plane mirror be
placed in its path so that it becomes vertically
upwards after reflection?
Answers
Answered by
2
Answer:
please mark me as brainlist please
Explanation:
30⁰
Answered by
2
Answer:
a light rey is incident on an angle 30
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