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
Which wave property determines (a) loudness, (b) pitch?
What is sound? How is it produced?
Arrange the speed of sound in gases Vg, solids Vs and liquids VLin an ascending order.
An observer X is on an island 5500 m from a vertical cliff on the shore. A ship Y is anchored between the island and the Cliff. A blast on the ship’s siren is heard twice by X, the interval being 5s. [Velocity of sound = 330 ms−1]
(i) Find the distance of the ship from the island.
(i) Find the distance of the cliff from the ship.
A continuous progressive transverse wave of frequency 8 Hz moves across the surface of a ripple tank
If the wavelength of the transverse wave is 32 mm, calculate the speed with which wave travels across the surface of the water.
A sound wave of wavelength 1/3 m has a frequency 996 Hz. Keeping the medium same, if frequency changes to 1328 Hz. Calculate
- velcoity of sound
- new wavelength.
Can we produce sound in vacuum?
Sound travels in air:
The sound waves travel faster ______.
