| 1 |
Sound waves are not. |
- A. Compressional waves
- B. Transverse waves
- C. Mechnical waves
- D. Low frequency waves
|
| 2 |
The wavelength of red colour is. |
- A. 700 nm
- B. 800 nm
- C. 900 nm
- D. 600 nm
|
| 3 |
What is transferred by teh movement of waves. |
- A. matter
- B. energy
- C. both a and b
- D. None of these
|
| 4 |
Which have audible range for 2 kHz and 110 kHz. |
- A. Human
- B. Owl
- C. Bat
- D. Dolphin
|
| 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 |
Which of the following animals can respond to lowest frequency. |
- A. Cat
- B. Cow
- C. Dog
- D. Dolphin
|
| 7 |
The speed of sound in air is. |
- A. 100 m/s
- B. 300 m/s
- C. 100 m/s
- D. 330 m/s
|
| 8 |
Wave are of .............. types. |
- A. Two
- B. Three
- C. Four
- D. Five
|
| 9 |
------------ waves are produced in stretched string. |
- A. Longitudinal wave
- B. Elecromagnetic wave
- C. Transverse wave
- D. None of these
|
| 10 |
Dolphins can hear sound underwater from up to ............ away |
- A. 15 km
- B. 20 km
- C. 25 km
- D. 30 km
|
