Form the top of a light house 60 m high ...

Form the top of a light house 60 m high with its base at the sea-level the angle of depression of a boat is `15^(@)`. Find the distance of the boat from the foot of light house.

A

`(sqrt3-1)/(sqrt3+1)` . 60 metres

B

`(sqrt3+1)/(sqrt3-1)` . 60 metres

C

`(sqrt3+1)/(sqrt3-1)` metres

D

none of these

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The correct Answer is:

B

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