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Physics · 2013
JEE Main · 23 April 2013, Shift 1 · Q28
A body of mass 'm' is tied to one end of a spring and whirled round in a horizontal plane with a constant angular velocity. The elongation in the…
A body of mass 'm' is tied to one end of a spring and whirled round in a horizontal plane with a constant angular velocity. The elongation in the spring is $\displaystyle 1$ cm. If the angular velocity is doubled, the elongation in the spring is $\displaystyle 5$ cm. The original length of the spring is :
Official answer
(1)
$\displaystyle 15$ cm
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JEE Main 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.