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प्रश्न
We have learnt that vibration is necessary for producing sound. Explain why the sound produced by every vibrating body cannot be heard by us?
उत्तर
Since range of frequency for every vibrating body is different. But we can hear the vibrations which lies between the range of frequencies from 20 Hz to 20000 Hz, so sound of every vibrating body cannot be heard by us.
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संबंधित प्रश्न
Consider the statement given below and choose the correct option.
Assertion: Two persons on the surface of the moon cannot talk to each other.
Reason: There is no atmosphere on the moon.
Define the term frequency.
Represent graphically by two separate diagrams in each case
Two sound waves having the same amplitude but different frequencies?
Represent graphically by two separate diagrams in each case
Two sound waves have the same frequency but different amplitudes.
Represent graphically by two separate diagrams in each case
Two sound waves have different amplitudes and also different wavelengths.
What is the lowest limit of audible frequency?
Name the characteristics that describe a sound.
Pitch is a general term for the distinguishable characteristic of a tone.
Define:
Amplitude
Numerical problems:
A person is listening to a tone of 400 Hz from a distance of 500 m from the source of the sound. What is the time interval between successive compressions from the source?
