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A mass of 2 kg is whirled in a horizonta...

A mass of 2 kg is whirled in a horizontal circle by means of a string at and initial speed of `5"rev min"^(-1)`. Keeping the radius constant the tension in the string is doubled. The new speed is nearly

A

7 r.p.m.

B

14 r.p.m.

C

10 r.p.m.

D

20 r.p.m.

Text Solution

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The correct Answer is:
A
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