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प्रश्न
What causes sound in air?
उत्तर
The waves in the air causes sound . Through waves , energy get transferred from one place to another and hence the sound.
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संबंधित प्रश्न
What change do you expect in the characteristics of a musical sound if
(i) Its frequency is increased,
(ii) Its amplitude is increased?
Complete the following sentence :
Sound is produced by a ___________ body.
Define the term amplitude of a wave. Write its S.I. unit.
Answer the following question :
Can sound travel in vacuum?
Define sound ranging. Give one use of sound ranging.
Select the correct option:
A part of the longitudinal wave in which particles of the medium are closer than the normal particles is called:
Select the correct option:
If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
Why does an empty vessel produce more sound than a filled one?
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
