Advertisements
Advertisements
Question
What is the effect of temperature and pressure on the speed of sound in a gas?
Advertisements
Solution
With an increase in temperature of the gas, there is increase in the speed of gas because an increase in temperature decreases the density of a gas. And the speed of sound is inversely proportional to the density of the gas. The speed of the gas is independent of the pressure of the gas.
APPEARS IN
RELATED QUESTIONS
How are the wavelength and frequency of a sound wave related to its speed?
What is sound? How is it produced?
An observer sitting in line of two tanks watches the flashes of two tanks firing at each other at the same time, but he hears the sounds of two shots 2s and 3.5s after seeing the flashes. If distance between the two tanks is 510m, find the speed of sound.
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 disturbance is created on the surface of water in a ripple tank with a small piece of cork floating on it. Describe the motion of the cork. What does the motion of the cork tell about the disturbance?
The distance between three consecutive crests of wave is 60 cm. If the waves are produced at the rate of 180/ min, calculate:
- wavelength
- time period
- wave velocity.
In longitudinal waves, the particle vibrates in a ______ direction of propagation.
______ is an unwanted sound.
