Advertisements
Advertisements
Question
Why is sound wave called a longitudinal wave?
Advertisements
Solution
When the displacement of the particles of the medium is parallel to the direction of wave propagation, it is called a longitudinal wave. Sound waves are propagated in the form of compression (C) and rarefaction (R) and the particles of the medium (air) move back and forth in the direction parallel to the propagation of the wave. Therefore, sound waves are called longitudinal waves.
APPEARS IN
RELATED QUESTIONS
Why are the waves mentioned by you not audible to us?
How is it possible to recognize a person by his voice without seeing him?
The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find :
(i) Wavelength of the wave (ii) Frequency of the wave
Define the term amplitude of a wave. Write its S.I. unit.
What is musical sound? Give an example.
What is approximate value of the speed of sound in iron as compared to that in air? Illustrate your answer with a simple experiment.
Mention two cases in which there is no Doppler effect in sound?
An earthquake produces which kind of sound before the mainshock wave begins
