MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Consider the damped SHM of a spring mass system. If the time taken for the amplitude to become half is ‘T’, what is the time taken for mechanical energy to become half? |
| A. | T |
| B. | T/2 |
| C. | 2T |
| D. | T/4 |
| Answer» C. 2T | |
| 2. |
What happens to the energy of a particle, in SHM, with time in the presence of damping forces? |
| A. | Stays constant |
| B. | Decreases linearly |
| C. | Decreases exponentially |
| D. | Decreases cubically |
| Answer» D. Decreases cubically | |
| 3. |
If the restoring force on a body is given by: F = -kx -bv, then what is the expression for amplitude of motion? Let A be amplitude without damping forces |
| A. | Ae-at, where a is some constant |
| B. | Aeat, where a is some constant |
| C. | A |
| D. | 0 |
| Answer» B. Aeat, where a is some constant | |
| 4. |
Damping force on a spring mass system is proportional to which of the following quantities? |
| A. | Velocity |
| B. | Acceleration |
| C. | Displacement from mean position |
| D. | (velocity)2 |
| Answer» B. Acceleration | |