Question

2. The sensation of frequency is called
(a) vibration (b) time period
(c) pitch
(d) amplitude
3. The audible range of frequencies for human ear
is 20 Hz to
(a) 15,000 Hz (b) 20,000 Hz
(c) 16,000 Hz (d) 17,000 Hz
4. The level of sound is measured in
(a) decibel
(b) kilohertz
(c) hertz
(d) metre
5. Unpleasant, irritating and tiring sounds are
called
(a) music
(b) low pitch
(c) noise
(d) high pitch
6. The speed of light in air is
(a) 3 x 10 m/s (b) 3 x 10 m/s
(c) 3 x 10 m/s
(d) 3 x 10 m/s
7. This is odd one among the following.
(a) dholak
(b) tabla
(c) congo
х
(d) trumpet​

Answer 1

Answer:

1) pitch

2) 20,000 Hz

3) decibel

4) noise

5) 3 x $10^{8}$ m/s

6) congo