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For a given velocity, a projectile has t...

For a given velocity, a projectile has the same range `R` for two angles of rpojection if `t_(1)` and `t_(2)` are the times of flight in the two cases then

A

`t_(1)t_(2) prop R^(2)`

B

`t_(1)t_(2) prop R`

C

`t_(1)t_(2) prop (1)/(2)`

D

`t_(1)t_(2) prop (1)/(R^(2))`

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The correct Answer is:
B
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