MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the ratio of moment of inertia of a ring to a disc? Given that both have masses in the ratio 2:1 & radii in the ratio 1:2 respectively. |
| A. | 1:1 |
| B. | 2:1 |
| C. | 1:2 |
| D. | 1:4 |
| Answer» B. 2:1 | |
| 2. |
The moment of inertia of a solid sphere is 10kgm2. What will be the moment of inertia of a very thin spherical shell of the same mass and radius as that of the solid sphere? |
| A. | 16.67kgm<sup>2</sup> |
| B. | 6kgm<sup>2</sup> |
| C. | 10kgm<sup>2</sup> |
| D. | 20kgm<sup>2</sup> |
| Answer» B. 6kgm<sup>2</sup> | |
| 3. |
What is the moment of inertia of a rod about an axis passing through the centre and perpendicular to its central axis? Given that mass of rod is 1kg, length = 10cm. |
| A. | 0.00083kgm<sup>2</sup> |
| B. | 0.0833kgm<sup>2</sup> |
| C. | 0.0033kgm<sup>2</sup> |
| D. | 0.00033kgm<sup>2</sup> |
| Answer» B. 0.0833kgm<sup>2</sup> | |
| 4. |
A solid disc has a mass of 10kg and radius 1m. Find its radius of gyration. |
| A. | 1.414m |
| B. | 0.707m |
| C. | 1m |
| D. | 1.732 |
| Answer» C. 1m | |
| 5. |
Two cylinders have the same mass and radius. One is hollow and the other is solid. Which one will have the greater moment of inertia about the central axis? |
| A. | Hollow cylinder |
| B. | Solid cylinder |
| C. | Same for both |
| D. | Depends on length of cylinder |
| Answer» B. Solid cylinder | |
| 6. |
Moment of inertia, of a spinning body about an axis, doesn t depend on which of the following factors? |
| A. | Distribution of mass around axis |
| B. | Orientation of axis |
| C. | Mass |
| D. | Angular velocity |
| Answer» E. | |