| 1 |
If amplitude of a simple pendulum is increased by 4 times the time period will be. |
- A. Four times
- B. Half
- C. Same
- D. Two times
|
| 2 |
Oscillation of shock absorber of a car is practical example of. |
- A. simple harmonic motion
- B. Forced oscillation
- C. Damped oscillation
- D. Undamped oscillation
|
| 3 |
P.E. of a spring is stored in |
- A. Spring
- B. mass
- C. Both of them
- D. None of these
|
| 4 |
The frequency of waves produced in microwave oven is |
- A. 1435 Hz
- B. 2450 MHz
- C. 1860 MHz
- D. 2850 Hz
|
| 5 |
A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is |
- A. 10 J
- B. 20 J
- C. 30 J
- D. 40 J
|
| 6 |
The produce oscillation, body is pulled away from its |
- A. Mean position
- B. Extreme position
- C. Both a and b
- D. None of these
|
| 7 |
A phenomenon by which energy is dissipated from the oscillating system is called. |
- A. Forced oscillation
- B. Free oscillation
- C. Damping
- D. Simple harmonic motion
|
| 8 |
If the time period of simple pendulum is 2 seconds its frequency will be. |
- A. 1 Hz
- B. 0.5 Hz
- C. 1.5 Hz
- D. 2 Hz
|
| 9 |
The wavelength of wave produced by microwave oven is. |
- A. 12 cm
- B. 12 m
- C. 18 m
- D. 18 cm
|
| 10 |
A spring has a spring constant k. If it is cut in two equal parts, the spring constant of each part will be |
|