1.

A tower stands at the top a hill whose height is three times the height of the tower. The tower is found to subtend an angle of Tan^(-1)(1/7) at a point 2 km away on the horizontal throught the foot of the hill. Then the height of the tower is

Answer»

`(1)/(2)km` or `(1)/(3)km`
`(1)/(3)km` or `(2)/(3)km`
`(2)/(3)km` or `(1)/(2)km`
`(3)/(4)km` or `(1)/(2)km`

Answer :C


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