Question

(d) solids, liquids and gases
(b) solids only
(d) A woman
(b) Baby boy
(d) Vacuum
(d) clouds
Multiple Choice Questions
Select the correct option:
1. Sound can travel through
(a) gases only
(c) liquids only
2. Voice of which the following is likely to have minimum frequency?
(a) Baby girl
(c) A man
3. In which medium does sound travel fastest?
(a) Water
(6) Air
(c) Steel
4. Sound is caused due to
(a) propagation of light
(b) change in physical state (c) vibrations
5. Which of the following is not a stringed instrument?
(a) Drum
(b) Sitar
(c) Guitar
7. In a wind instrument, sound is produced by
(a) vibrating string
(b) air column (c) vibrating membrane
6. The audible range of frequency is
(a) 200 Hz - 2000 Hz (b) 20 Hz - 20000 Hz (c) 20 Hz - 35,000 Hz
9. If a pendulum has a time period of 3 s, then its frequency is:
(a) 0.5 Hz
(b) 3 Hz
(c) 35
(d) Violin
(d) vibrating nails of the playe
(d) 220 Hz - 20,000 Hz
(d) 0.33 HZ​

Answer 1

Answer:

liquid

baby girl

air

vibration