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8th Jammu and Kashmir Board
IMPORTANT
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If the amplitude of vibration is large, sound is feeble.

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Important Questions on Sound

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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
For human ears, the audible range is 20 Hz to 20,000 Hz.
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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
The lower the frequency of vibration, the higher is the pitch.
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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
Unwanted or unpleasant sound is termed as music.
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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
Noise pollution may cause partial hearing impairment.
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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 4
Time taken by an object to complete one oscillation is called _____ . (Duration, Time period)
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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 4
Loudness is determined by the _____ of vibration.
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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 4
The unit of frequency is _____.
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8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 4
Unwanted sound is called _____.