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Write true or false for a given statement.
Loudness depends on frequency.
Select the correct alternative :
We can hear sound of frequency
Why are the waves mentioned by you not audible to us?
Which one of the following does not consist of transverse waves?
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
A person fires a gun and other boy at a distance hears the sound of the fire 2.5 s after seeing the flash. If the speed of sound in air is 330 ms-1, find the distance between the boys.
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
Assertion: The sound of thunder is heard a little later than the flash of light.
Reason: The speed of sound is much less than the speed of light.
How do we hear the sound?
