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A particle of mass m is attached to one end of string of length l while the other end is fixed to point `h(h lt l)` above a horizontal table. The particle is made to revolve in a circle on the table so as to make p revolutions per second. The maximum value of p, if the particle is to be in contact with the table, is : `(l gt h)`

A

`2pisqrt(gh)`

B

`sqrt(g//h)`

C

`2pi sqrt(h//g)`

D

`(1)/(2pi)sqrt(h//g)`

Text Solution

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The correct Answer is:
d
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