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Assertion : Two identical solid spheres ...

Assertion : Two identical solid spheres are rotated frm rest to same angular velocity `omega` about two different axes as shown in figure. More work will have to be done to rotate the sphere in case-2
Reason : Moment of inertia is case-2 is more.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

C

If Assertion is true but Reason is fasle

D

If Assertion is false but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
A
Moment of inertia of sphere in case 1 is `(2)/(5) MR^(2)`
Moment of inertia of sphere is case 2 is `(7)/(5) MR^(2)`
So, more work will have to be done to rotate the sphere in case 2.
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