True or false:
a)The pitch of sound depends on time period of vibration.
b)The number of vibrations per second of a vibrating object is called its time period.
c)If the amplitude of vibration is large,sound is feeble.
d)The lower the frequency of vibration, the higher is the pitch.
e)Unpleasant or unwanted sound is termed as music.
f)Noise pollution may cause partial hearing impairment.
g)Sound travels faster than light.
h)1 Hertz mean 1 vibration per sound.
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2
Answer:
- true
- false
- true
- false
- false
- true
- true
- true
Explanation:
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Answered by
2
Explanation:
1. true
2. false
3. true
4.false
5. false
6.true
7.true
8.true
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