Home Physics System of Particles Rotational Motion Matching Type Question A solid sphere is rotating about an axis as …
Physics System of Particles Rotational Motion Matching Type Question MCQ (Single Correct)

A solid sphere is rotating about an axis as shown in figure. An insect follows the dotted path on the circumference of sphere as shown in the figure.


Then, match the Column I with Column II.

Column I

Column II

A.

Moment of inertia

I.

will remain constant

B.

Angular velocity

II.

will first increase, then decrease

C.

Angular momentum

III.

will first decrease, then increase

D.

Torque

IV.

Will be Zero

Choose the correct answer from the options given below

A
A-I, B-II, C-IV, D-III
B
A-II, B-III, C-I, D-IV
C
A-I, B-III, C-II, D-IV
D
A-IV, B-I, C-III, D-II

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Text Solution

Verified by Experts
The correct answer is:
B

Here, external force,

Torque,

constant, and constant. Insect first
moves away from the axis, then towards it. Hence, will first increase and then decrease.
Angular velocity will first decrease and then increase.

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