Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 14 PCB Single Correct MCQ
Published on: August 14, 2026

A sphere is released on a smooth inclined plane from the top. When it moves down, its angular momentum is:

A
Conserved about every point
A only
B
Conserved about the point of contact only
C only
C
Conserved about any point on a line parallel to the inclined plane and passing through the centre of the ball.
Choose the most appropriate answer from the options given below;
B and C only
D
A, B and C

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Text Solution

Verified by Experts
The correct answer is:
B

When the sphere rolls down the inclined plane, its angular momentum remains constant about any point on a line parallel to the plane and passing through the center of the sphere. This is because the torque about these points is zero.

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