MCQ Moment of Inertia, Class 11 Physics

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. The radius of gyration of a ring of radius R about an axis through its centre and perpendicular to its plane is

R / √2

R

R / 2

5 R / √2

Question 1 of 10

2. Two rings have their moment of inertia in the ratio 2:1 and their diameters are in the ratio 2:1. The ratio of their masses will be:

1:2

2:1

1:4

1:1

Question 2 of 10

3. The radius of gyration of uniform rod of length L and mass M about an axis passing through its centre and perpendicular to its length is

A

B

C

D

Question 3 of 10

4. Moment of inertia of two spheres of equal radii are equal. One of the spheres is solid and has the mass 5 kg and the other is a hollow sphere. What is the mass of hollow sphere?

A

B

C

D

Question 4 of 10

5. A solid cylinder of 200g and radius 10 cm has a moment of inertia (about its natural axis)

A

B

C

D

Question 5 of 10

6. There are two circular iron discs A and B having masses in the ratio 1:2 and diameter in the ratio 2:1. The ratio of their moment of inertia is

4:1

1:3

2:1

8:1

Question 6 of 10

7. The moment of inertia of two spheres of equal masses is equal. If one of the spheres is solid of radius m and the other is a hollow sphere. What is the radius of the hollow sphere?

5 m

√3 m

3√3 m

3 m

Question 7 of 10

8. The moment of inertia of a body is independent of

choice of axis of rotation

its mass

its shape and size

its angular velocity

Question 8 of 10

9. The moment of inertia of a solid sphere about its diameter is .Find moment of inertia about its tangent.

A

B

C

D

Question 9 of 10

10. A ring has greater moment of inertia than a circular disc of same mass and radius, about an axis passing through its centre of mass perpendicular to its plane, because

all mass is at maximum distance from axis

because the centre of the ring does not lie on it

because the ring needs greater inertia to bend it

because the moment produced in the ring is more

Question 10 of 10

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