JEE Main & Advanced
JEE Main Online Paper (Held On 23 April 2013)
question_answer
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 1 cm. If the angular velocity is doubled, elongation in the spring is 5 cm. The original length of the spring is:
JEE Main Online Paper ( Held On 23 April 2013 )