EASY
9th ICSE
IMPORTANT
Earn 100

Complete the sentence :

 Wave velocity= X wavelength.

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Important Questions on Propagation of Sound Waves

EASY
9th ICSE
IMPORTANT
The speed of sound in air at 0oC is nearly:
EASY
9th ICSE
IMPORTANT

The heart of a man beats 75 times a minute. What is its frequency?

EASY
9th ICSE
IMPORTANT

The heart of a man beats 75 times a minute. What is its time period?

EASY
9th ICSE
IMPORTANT
The time period of a simple pendulum is 2 sec. find its frequency.
EASY
9th ICSE
IMPORTANT
The separation between two consecutive crests in a transverse wave is 100 m. If the wave velocity is 20 ms-1, find the frequency of the wave.