Advertisements
Advertisements
प्रश्न
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
Advertisements
उत्तर
We have to find the velocity of the sound wave.
Given: Frequency f = 2,000 Hz
Wavelength λ = 0.65 m
We know the relation between velocity, frequency, and wavelength ν = f × λ,
where ν is the velocity, F the frequency, and λ the wavelength.
So,
ν = (2000) × (0.65) m/s
= 1300 m/s
Therefore, velocity of sound is 1300 m/s.
APPEARS IN
संबंधित प्रश्न
Describe an experiment to show that sound can travel in a solid.
Write the approximate speed of sound in steel.
A jet aircraft flies at a speed of 410 m/s. What is this speed known as?
When we put our ear to a railway line, we can hear the sound of an approaching train even when the train is far off but its sound cannot be heard through the air. Why?
Fill in the blanks with suitable words .
Wave speed in metres per second equals frequency in ............ multiplied by ..................... in ..................
The incidence of ______ in daily life shows that the velocity of sound is less than the velocity of light.
Helium gas is filled in two identical bottles A and B. The mass of the gas in the two bottles is 10 gm and 40 gm respectively. If the speed of sound is the same in both bottles, what conclusions will you draw?
The velocity of sound in air at a particular temperature is 330 ms–1. What will be its value when temperature is doubled and the pressure is halved?
Establish the relationship between the speed of sound, its wavelength and frequency. If the velocity of sound in air is 340 m s–1, calculate
(i) wavelength when the frequency is 256 Hz.
(ii) frequency when the wavelength is 0.85 m
The speed of sound in a gaseous medium depends on the nature of the gas.
