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)
(f) Unwanted or unpleasant sound is termed as music. (T/F)
(g) Noise pollution may cause partial hearing impairment. (T/F)

Answer 1

Hello!!

a) T

b) T

c) F

d) T

e) T

f) F

g) T

Hope this helps..

Answer 2

Answer:

True

False

False

True

False

False

True

hope it's help you

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