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Question: Answered & Verified by Expert
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 $1 \mathrm{~cm}$. If the angular velocity is doubled, the elongation in the spring is $5 \mathrm{~cm}$. The original length of the spring is :
PhysicsRotational MotionJEE MainJEE Main 2013 (23 Apr Online)
Options:
  • A
    $15 \mathrm{~cm}$
  • B
    $12 \mathrm{~cm}$
  • C
    $16 \mathrm{~cm}$
  • D
    $10 \mathrm{~cm}$
Solution:
1969 Upvotes Verified Answer
The correct answer is:
$15 \mathrm{~cm}$
No Solution Available

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