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A person standing between two parallel h...

A person standing between two parallel hills fires a gun and hears the first echo after `t_(1)` sec and the second echo after `t_(2)` sec. The distance between the two hills is

A

`(v(t_(1) - t_(2)))/(2)`

B

`(v(t_(1) t_(2)))/(2 (t_1 + t_2)) `

C

`v(t_(1) + t_(2))`

D

`(v(t_(1) + t_(2)))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`(v(t_(1) + t_(2)))/(2)`
Distance between man and hill 1 , `d_(1) = v xx (t_(1))/(2)`
Distance between man and hill 2 , `d_(2) = v xx (t_(2))/(2)`
Distance between the two hills , `d = d_(1) + d_(2)`
`d = (v(t_(1) + t_(2)))/(2)`
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