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A particle is rotated in a vertical circ...

A particle is rotated in a vertical circle by connecting it to a string of length `l` and keeping the other end of the string fixed. The minimum speed of the particle when the string is horizontal for which the particle will complete the circle is

A

`sqrt(gl) `

B

`sqrt(2gl) `

C

`sqrt(3gl) `

D

`sqrt(5gl) `

Text Solution

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The correct Answer is:
C
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