Q.4- A ray of light making an angle 10° with the horizontal is incident on a plane mirror making an angle X with the
horizontal. What should be the value of X so that the reflected ray goes vertically upwards?
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Answer:
a ray of light making an angle 10 degree
Explanation:
a ray of light making an angle 10 degree with the horizontal is incident on aplane mirror making an angle theta with the horizontal ,what should be the value of theta so that the reflected ray goes vertically upwards? The answer is 40 degrees.
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