Question

In the following statements, tick T against those which are true, and 'F
against those which are false.
(a) Sound cannot travel in vacuum. (T/F)
(b) The number of oscillations per second of a vibrating object is called
its time period. (T/F)
(c) If the amplitude of vibration is large, sound is feeble. (T/F)
(d) For human ears, the audible range is 20 Hz to 20,000 Hz. (T/F)
(e) The lower the frequency of vibration, the higher is the pitch. (T/F)
(1) Unwanted or unpleasant sound is termed as music. (T/F)
(g) Noise pollution may cause partial hearing impairment. (T/F)

PLEASE HELP :"(​

Answer 1

1. True
2. True
3. True
4. True
5. True
6. False
7. True

• Hope it is helpful

Answer 2

Answer:

t,t,t,t,t,f,t

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