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A diver , at a depth of 12m in water ...

A diver , at a depth of 12m in water ` ( mu = (4)/(3))` sees the sky in a cone of semivertical angle

A

` sin ^(-1) ((4)/(3))`

B

` tan ^(-1) ((4)/(3))`

C

` sin ^(-1) ((3)/(4))`

D

` 90 ^(@) `

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2011-PHYSICS
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