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There of the fundamental constant of ph...

There of the fundamental constant of physics are the universal gravitational constant, `G=6.7xx10^(-11) m^(3) kg^(-) s^(-2)`, the speed of light `c=3.0xx10^(8) m//s` and Planck's constant, `h=6.6xx10^(-34) Js^(-1)`. two particles A and V are projected in the vertical plane with same initial velocity `u_(0)` fro part (0,0) and (l,-h) towards each other as shwon in figure
The time when separation between A and B is minimum is

A

`h/(u cos theta)`

B

`sqrt((2h).g)`

C

`(2l)/(u cos theta)`

D

`l/(2ucos theta)`

Text Solution

Verified by Experts

The correct Answer is:
D
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