1 |
Sound cannot pass through. |
- A. Solid
- B. Liquid
- C. Vacuum
- D. Gasses
|
2 |
The wavelength of red colour is. |
- A. 700 nm
- B. 800 nm
- C. 900 nm
- D. 600 nm
|
3 |
The lowest pointof a wave is................ |
- A. Crest
- B. Amplitude
- C. Peak
- D. Trough
|
4 |
What is transferred by teh movement of waves. |
- A. matter
- B. energy
- C. both a and b
- D. None of these
|
5 |
Which of the following animals can respond to lowest frequency. |
- A. Cat
- B. Cow
- C. Dog
- D. Dolphin
|
6 |
Sound waves are not. |
- A. Compressional waves
- B. Transverse waves
- C. Mechnical waves
- D. Low frequency waves
|
7 |
Which of the following features is the height of the wave from the rest position or mid line. |
- A. Frequency
- B. Wavelength
- C. Amplitude
- D. Pitch
|
8 |
An object produce a sound with a frequency of 50 Hz. Find its tiem period. |
- A. 0.01 sec
- B. 0.03 sec
- C. 0.02 sec
- D. 0.04 sec
|
9 |
Speed of sound in water is |
- A. 1000 ms-1
- B. 1500 ms-1
- C. 900 ms-1
- D. 2000 ms-1
|
10 |
The speed of sound in air is. |
- A. 100 m/s
- B. 300 m/s
- C. 100 m/s
- D. 330 m/s
|