C3. Match the two columns.
Column A
1. Vacuum
2. Larynx
3. Frequency
Column B
(1) Speed of sound travelling through air
(ii) A medium through which sound cannot travel
(iii) To and fro motion of a vibrating body about its
mean position
(iv) The number of vibrations produced by a vibrating
particle in one second
(v) Maximum displacement of a vibrating body from
its mean position
(vi) Produces sound in humans
4. 331 m/s
5. Vibration
6. Amplitude
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Answer:
1 = ii
2= iii
3= iv
4= i
5= vi
6= v
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