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Two persons are 'a' metres apart and the...

Two persons are 'a' metres apart and the height of one is double that of the other. If, from the middle point of the line joining their feet, an observer finds the angular elevation of their tops to be complementary, the height of the shorter person in metre is _______ .

A

`(a)/(4)`

B

`(2)/sqrt(2)`

C

`asqrt(2)`

D

`(a)/(2sqrt(2))`

Text Solution

Verified by Experts

The correct Answer is:
d
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