EASY
8th CBSE
IMPORTANT
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Infrasonic waves are high-frequency sounds.

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Important Questions on Sound

EASY
8th CBSE
IMPORTANT
A feeble sound means a small amplitude and a high pitch.
EASY
8th CBSE
IMPORTANT
Which one of the following produces sound using an air column?
EASY
8th CBSE
IMPORTANT
Which one of the following causes noise pollution?
EASY
8th CBSE
IMPORTANT
Air forced through _____ causes the vocal cords to vibrate.
EASY
8th CBSE
IMPORTANT
Which of the following produces sound in a tabla?
EASY
8th CBSE
IMPORTANT
Which of the following produces sound in a flute?
EASY
8th CBSE
IMPORTANT
The loudness of a sound is expressed in:
EASY
8th CBSE
IMPORTANT
The loudness of normal breathing is: