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JEE Main202324 Jan 2023Morning ShiftPhysicsRotational MotionActual

Solid sphere A is rotating about an axis P Q . If the radius of the sphere is 5 cm , then its radius of gyration about P Q will be x cm . The value of x is _____.

Correct answer

0

Step-by-step solution

Using parallel axis theorem, I P Q = I COM  + M d 2 = 2 5 M R 2 + M d 2 = M 2 5 × 5 2 + 10 2 = M [ 110 ] = M k 2 ⇒ k = 110   cm Therefore, x = 110 .

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