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A plane mirror PQ is held normally to
the water surface of refractive index 1.33 as
shown in figure. A ray of light is incident at
an angle of 50° with mirror surface. After
reflection the ray is refracted into water. The
angle of refraction in water is
(a)
40°9' (b)
35°9'
(c)
45°36' (d) 19°28'
b
50°

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