Advertisements
Advertisements
Question
The frequency of the sound emitted by the loudspeaker is 1020 Hz. Calculate the wavelength of the sound wave in air in cm where its velocity is 340 m/s.
Solution
We have to find the wavelength of the sound wave. We have frequency and velocity of sound wave.
We know the relation between velocity, frequency, and wavelength `lambda = v/f`,
where ν is the velocity, f the frequency, and λ the wavelength.
So,
`lambda = 340/1020` m
= 0.33 m
Therefore, wavelength of the sound wave is 33.3 cm.
APPEARS IN
RELATED QUESTIONS
The velocities of sound waves in four media P, Q, R and S are 18,000 km/h, 900 km/h, 0 km/h and 1200 km/h respectively. Which medium could be a liquid substance?
Fill in the blank and explain.
Sound does not travel through ______.
State three characteristics of the medium required for propagation of sound?
Assuming the speed of sound in air equal to 340 m/s and in water equal to 1360 m/s, find the time taken to travel a distance 1700 m by sound in (i) air (ii) water.
What is the approximate value of the speed of sound in air at N.T.P.?
What is the audible range of frequency?
Can we hear sounds of frequencies:
More than 20 KHZ
Name the Sound of the Frequency Given Below:
2000 Hz
______ is the number of vibrations of a particle in the medium, in one second
Rarefactions are the regions of ______ where particles are spread apart.
