| 1 |
An oscillating mass-spring system produces |
- A. Sound waves
- B. Electromagnetic waves
- C. Light waves
- D. Periodic waves
|
| 2 |
On loading the prong of a tuning fork with wax, the frequency of sound. |
- A. Increases
- B. Decreases
- C. Remains same
- D. First increases then decrease
|
| 3 |
The process followed by Newton for the determination of speed of sound in air is |
- A. Adiabatic
- B. Isothermal
- C. Isobaric
- D. Isochoric
|
| 4 |
Two waves of same frequency and moving in the same direction produces. |
- A. Interference
- B. Diffraction
- C. Beats
- D. Stationary waves
|
| 5 |
A stationary waves is established din a string which vibrates in four segments at a frequency of 120 Hz, Its fundamental frequency is. |
- A. 15 Hz
- B. 30 HZ
- C. 60 Hz
- D. 480 Hz
|
| 6 |
Longitudinal waves do not exhibit |
- A. Reflection
- B. Refraction
- C. Polarization
- D. Diffraction
|
| 7 |
The experimental value for the velocity of sound in air is |
- A. 233 m-sec<sup>-1</sup>
- B. 333 m-sec<sup>-1</sup>
- C. 433 m-sec<sup>-1</sup>
- D. 533 m-sec<sup>-1</sup>
|
| 8 |
Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will |
- A. Decrease
- B. Unchanged
- C. Half
- D. Increases
|
| 9 |
When the amplitude of a wave become double, its energy becomes |
- A. One half
- B. Two times
- C. Three times
- D. Four times
|
| 10 |
In vibrating string, the points where the amplitude is maximum are called. |
- A. Nodes
- B. Antinodes
- C. Troughs
- D. Crests
|
