1 |
Sound cannot pass through. |
- A. Solid
- B. Liquid
- C. Vacuum
- D. Gasses
|
2 |
Which of the followig features of a wave is the number of waves that pass by each second. |
- A. Loudness
- B. Amplitude
- C. Frequncy
- D. Wave speed
|
3 |
The wavelength of red colour is. |
- A. 700 nm
- B. 800 nm
- C. 900 nm
- D. 600 nm
|
4 |
The lowest pointof a wave is................ |
- A. Crest
- B. Amplitude
- C. Peak
- D. Trough
|
5 |
Which of the following features of a wave is the number of waves that pass by each second. |
- A. Loudness
- B. Amplitude
- C. Frequency
- D. Wave speed
|
6 |
What is transferred by teh movement of waves. |
- A. matter
- B. energy
- C. both a and b
- D. None of these
|
7 |
Which of the following animals can respond to lowest frequency. |
- A. Cat
- B. Cow
- C. Dog
- D. Dolphin
|
8 |
Sound waves are not. |
- A. Compressional waves
- B. Transverse waves
- C. Mechnical waves
- D. Low frequency waves
|
9 |
Sound is a form of. |
- A. Energy
- B. Wave
- C. Frequency
- D. intensity
|
10 |
Dolphins can hear sound underwater from up to ............ away |
- A. 15 km
- B. 20 km
- C. 25 km
- D. 30 km
|