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A tower of height b substends an angle a...

A tower of height b substends an angle at a point O on the leavel of the foot of the tower and at a distance a from the foot of the tower. If a pole mounted on the tower also subtends an equal angle at O, the height of the pole is

A

`b((a^(2)-b^(2))/(a ^(2)+ b ^(2)))`

B

`b((a ^(2)+ b ^(2))/(a ^(2)-b ^(2)))`

C

`a((a ^(2)-b ^(2))/(a ^(2)+b^(2)))`

D

`a((a ^(2)+b^(2))/(a ^(2)-b^(2)))`

Text Solution

Verified by Experts

The correct Answer is:
B
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