MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Doppler Effect in Light Waves

The frequency...

Question

The frequency of sound reaching a stationary listener behind a moving source is

A

lower than source frequency

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

higher than source frequency

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

zero

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

same as the frequency of the source

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A lower than source frequency
The frequency of sound reaching a stationary listener behind a moving source is:

$¯ n = n (\frac{v}{v + v_{s}})$ . here, $v < v + v_{s}$ . So, $¯ n < n$ .

Suggest Corrections

thumbs-up

0

Similar questions

Q. A source of sound moves towards a stationary listener with the velocity of sound. If the actual frequency of the sound produced by the source be

f,

then change in frequency will be

Q. A sound source is moving towards stationary listener with

\frac{1}{10}

th of the speed of sound. The ratio of apparent to real frequency is:

Q. The apparent frequency of sound heard by a listner is 10% more than the actual frequency of the note emitted by the source when the source moves towards the stationary listner with velocity v. When the source moves with a velocity 2v, the apparent frequency will be more than the actual frequency by

Q. Statement - 1 : Due to the motion of listener, the frequency of the sound waves (as received by listener) emitted by stationary source is affected.
Statement - 2 : Due to the motion of source, wavelength of the sound waves (emitted by source) as received by stationary listener is affected.
Statement - 3 : If receiver and source both are moving, the observed frequency must be different from the original frequency of source.
Treat motion of source or listener as always along a line joining them for all above cases.

Q. There are four possible relative motions between the source of a sound and the listener
1) source moves towards stationary listener
2) source moves away from stationary listener
3) listener moves towards stationary source
4) listener moves away from stationary source
In which of the cases, the change in frequency is the same. The magnitude of velocity of source or listener being the same.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Doppler's Effect

PHYSICS

Watch in App

explore_more_icon

Explore more

Doppler Effect in Light Waves

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon