AIIMS2004Physics-Rotational Dynamics
AIIMS 2004 Physics Moment of Inertia Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 11
Assertion : There are very small sporadic changes in the period of rotation of the earth.
Reason : Shifting of large air masses in the earth's atmosphere produce a change in the moment of inertia of the earth causing its period of rotation to change.
A
If both assertion and reason are true 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 false
D
If both assertion and reason are false
Correct Answer
Option A
Detailed Explanation
Normally when a body is moving in a straight line, the angular momentum is conserved.
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