Question

3.
Z VERY SHORT ANSWER QUESTIONS:
1. ............
travel through air.
2. Larger vibrations have..........
amplitude.
is the part of ear visible
outside.
4. You hear a bomb blast 10 seconds after it
happens. Do you agree?
5. Similar to light waves, sound waves also
undergo reflection. True or false?
6. Where are the vocal cords located in a
human body?
7. We can get echo in a room of 10 m length
and width. Do you agree?
8. Frequencies below 20 Hz.......... .
9. The frequent to and fro movement of anobject about its mean position............ .
10. Musical sounds of a specific pitch.......... .
11. Amount of force required to maintain the state of motion. ...........
12. ........ force exists between two stationary changes
a )mechanical
b )gravitational
c) muscular
d )none of these​

Answer 1

Answer:

1. Sound

2. smaller

3. Pinna

4. yes , light travel faster than sound .

5.True

6. In the neck region , near larynx

7. Yes

8.Infrasonic waves

9.Longitudinal wave

10.Quality or Timbre

11.1N

12.none of these (d)