Moment of Inertia (the radius of gyration, values of moments of inertia forsimple geometrical objects, parallel and perpendicular axes theorems, and their applications) NEET Questions

Physics - Rotational Motion
Moment of Inertia (the radius of gyration, values of moments of inertia forsimple geometrical objects, parallel and perpendicular axes theorems, and their applications)

Moment of Inertia (the radius of gyration, values of moments of inertia forsimple geometrical objects, parallel and perpendicular axes theorems, and their applications) MCQ Questions


7.
The radius of gyration of a solid sphere of mass M and radius R about its diameter is:
A.
R
B.
R/√2
C.
R√(2/5)
D.
R/√5
😑 View Answer Error
ANSWER :
C. R√(2/5)
8.
The radius of gyration of a thin circular ring of radius R rotating about its own axis (perpendicular to plane) is:
A.
R/√2
B.
R/2
C.
R√2
D.
R
😑 View Answer Error
ANSWER :
D. R
9.
The radius of gyration of a solid cylinder of radius R about its own axis is:
A.
R
B.
R/2
C.
R/√2
D.
R√2
😑 View Answer Error
ANSWER :
C. R/√2
10.
If the radius of gyration of a body about an axis is k and its moment of inertia is I, the total mass of the body is:
A.
k²/I
B.
I/k
C.
I/k²
D.
k/I
😑 View Answer Error
ANSWER :
C. I/k²
11.
The radius of gyration of a thin rod of length L about an axis perpendicular to it through its centre is:
A.
L/2
B.
L/√12
C.
L/√3
D.
L/√6
😑 View Answer Error
ANSWER :
B. L/√12
12.
The radius of gyration of a circular disc about its diameter is:
A.
R/2
B.
R/√2
C.
R/√4
D.
R/4
😑 View Answer Error
ANSWER :
A. R/2
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