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If two mirrors X and Y, meet at right angles, A ray of light is incident on X at an angle of $300$ so the angle of incidence for the mirror Y will be

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Detailed Solution

If two mirrors X and Y, meet at right angles, A ray of light is incident on X at an angle of

30 0

so the angle of incidence for the mirror Y will be

30 0

.
If two mirrors, X and Y, meet at right angles, A ray of light is incident on X at an angle of

30 0

.
So the angle of reflection for the mirror X will be

30 0

. By the law of reflection, the angle of incidence is always equal to the angle of reflection. And the refracted ray from mirror X will be the incident ray for mirror Y. Therefore, the angle of incidence for mirror Y will also be

30 0

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