Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
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
संबंधित प्रश्न
Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.
Fill in the blank.
Sound can travel in a ______
Name the type of waves which are used by astronauts to communicate with one another on moon (or in outer space).
Out of solids, liquids and gases :
(a) in which medium sound travels slowest?
(b) in which medium sound travels fastest?
Explain why, a ringing bell suspended in a vacuum chamber cannot be heard outside.
Describe in brief, with the aid of a lebelled diagram, an experiment to demonstrate that a material medium is necessary for propagation of sound.
Complete the following sentences :
When sound travels in a medium, the particles of medium ___________ but the disturbance ___________.
Sound in air propagates in form of
State three characteristics of the medium required for the propagation of sound.
The small to and fro motion is called vibration.
