| 1 |
When two waves having same frequency traveling in same direction combine, phenomenon is called |
- A. Wave motion
- B. Combination of waves
- C. Interference
- D. Diffraction
|
| 2 |
The profile of periodic waves generated by a source executing S.H.M is represented by a. |
- A. Circle
- B. Sine curve
- C. Tangent curve
- D. Cosine curve
|
| 3 |
When ever the path difference between the waves is integral multiple of half the wavelength, interference will be |
- A. Constructive
- B. Destructive
- C. (-)ve
- D. (+) ve
|
| 4 |
The distance covered by wave in 1 sec is |
- A. wavelength
- B. Wave number
- C. Wave speed
- D. Frequency
|
| 5 |
If 30 waves per second pass through a medium at a speed 30 ms-1, then the wavelength is. |
- A. 30 m
- B. 15 m
- C. 1 m
- D. 28 m
|
| 6 |
According to Newton, sound travels in air under conditions of. |
- A. Adiabatic
- B. Isothermal
- C. Isobaric
- D. Isochoric
|
| 7 |
The state of human blood flow can be found by using. |
- A. Newton's formula of speed of sound
- B. Interference of sound
- C. Phenomena of beats
- D. Doppler's effect of sound
|
| 8 |
Two tuning forks of frequencies 240 Hz and 243 Hz are sounded together, the number of beats per second is. |
|
| 9 |
Longitudinal waves do not exhibit |
- A. Reflection
- B. Refraction
- C. Polarization
- D. Diffraction
|
| 10 |
With increase of temperature, speed of sound. |
- A. Remains constant
- B. Becomes zero
- C. Decreases
- D. Increases
|
