The angle of elevation of a stationary cloud from a point 2500 m above a lake is\[{{15}^{o}}\]and the angle of depression of its reflection in the lake is\[{{45}^{o}}\]. The height of cloud above the lake level is [IIT 1976]

The angle of elevation of a stationary cloud from a point 2500 m above

1.	The angle of elevation of a stationary cloud from a point 2500 m above a lake is\[{{15}^{o}}\]and the angle of depression of its reflection in the lake is\[{{45}^{o}}\]. The height of cloud above the lake level is [IIT 1976]
A.	\[2500\,\sqrt{3}\,metres\]
B.	2500 metres
C.	\[500\,\sqrt{3}\,metres\]
D.	None of these
Answer» B. 2500 metres

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The angle of elevation of a stationary cloud from a point 2500 m above a lake is\[{{15}^{o}}\]and the angle of depression of its reflection in the lake is\[{{45}^{o}}\]. The height of cloud above the lake level is [IIT 1976]

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