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An obserever finds that the angular elev...

An obserever finds that the angular elevation of a tower is `theta`. On advancing a metres towards the tower the elevation is `45^(@)` and an advancing 'b' metres nearer the elevation is `90^(@)-theta` then the height of the tower in metres is

A

`(ab)/(a+b)`

B

`(ab)/(a-b)`

C

`(2ab)/(a+b)`

D

`(2ab)/(a-b)`

Text Solution

Verified by Experts

The correct Answer is:
B
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