| 1 |
Which have audible range for 2 kHz and 110 kHz. |
- A. Human
- B. Owl
- C. Bat
- D. Dolphin
|
| 2 |
What type of wave does not need matter to travel through. |
- A. Mechaical
- B. Electromagnetic
- C. Sound
- D. Transverse
|
| 3 |
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
|
| 4 |
The speed of sound in air is. |
- A. 100 m/s
- B. 300 m/s
- C. 100 m/s
- D. 330 m/s
|
| 5 |
Speed of sound in water is |
- A. 1000 ms-1
- B. 1500 ms-1
- C. 900 ms-1
- D. 2000 ms-1
|
| 6 |
What is transferred by teh movement of waves. |
- A. matter
- B. energy
- C. both a and b
- D. None of these
|
| 7 |
Wave are of .............. types. |
- A. Two
- B. Three
- C. Four
- D. Five
|
| 8 |
Which of the following animals can respond to lowest frequency. |
- A. Cat
- B. Cow
- C. Dog
- D. Dolphin
|
| 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
|
