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Question

# Water- mirror system is shown in figure. A point object P is also marked. The radii of curriature of mirror is 120 cm. Two images of object P are considered one by direct reflection from water surface and other by refraction at water surface-reflection at mirror-refraction at water surface. The separation between two images isRefractive index of water is 48/3

A

36 cm

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B

12 cm

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C

24 cm

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D

48 cm

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Solution

## The correct option is C 24 cm Ist Image It is formed due to reflection at water surface, (which can be considered as plane mirror) so depth of I, from surface of water is 12 cm

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