Wave Motion> The engine of a train approaching a stati...

The engine of a train approaching a station whistles at a frequency of 440 Hz. A stationary observer on the platform notices a change of 40 Hz in the frequency as the engine passes him. If the velocity of sound is 330 m/s, the speed of the train is

Varun Manhas , 7 Years ago

Grade 11

1 Answers

Phanindra

Last Activity: 7 Years ago

We have one formula...

n' = n(V-V_obs)÷(V-V_source)

Here, V?_obs= 0 (since observer is at rest..)

V?_source = vel. Of train.....= ?

n'=40 hz (given)

V=velocity of sound...=330 m/s (given)

n=original frquency =440 hz (given)

Now substitue the values to get V?_source....

Provide a better Answer & Earn Cool Goodies

Enter text here...

LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

Full Live Access

Study Material

Live Doubts Solving

Daily Class Assignments

Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

A particle on a speing executes shm when the particle is found at x=xmax/2 the speed of the partcle is A)vx=vmax B)vx=√3vmax/2C)vx=√2vmax/2D)vx=vmax/2

wave motion

0 Answer Available

Last Activity: 2 Years ago

displacement associated with three dimensional wave is given by sai x y is equal to 1 + 1 by 2 x + root 3 by 2 k x minus omega t show that the wave propagates along a direction making an angle 60 degree with the x-axis

wave motion

0 Answer Available

Last Activity: 2 Years ago

What do you mean by Energy of Simple Hormonic Motion?

wave motion

0 Answer Available

Last Activity: 2 Years ago

What is mean by motion and time define it's all types with there parts and their s.i. units.

wave motion

0 Answer Available

Last Activity: 3 Years ago

explain the effects of doppler effect in satellite communication

wave motion

0 Answer Available

Last Activity: 3 Years ago

View all Questions

Wave Motion> The engine of a train approaching a stati...

The engine of a train approaching a station whistles at a frequency of 440 Hz. A stationary observer on the platform notices a change of 40 Hz in the frequency as the engine passes him. If the velocity of sound is 330 m/s, the speed of the train is

Varun Manhas , 7 Years ago

Phanindra

Provide a better Answer & Earn Cool Goodies

LIVE ONLINE CLASSES

Ask a Doubt

Other Related Questions on wave motion

A particle on a speing executes shm when the particle is found at x=xmax/2 the speed of the partcle is A)vx=vmax B)vx=√3vmax/2C)vx=√2vmax/2D)vx=vmax/2

wave motion

displacement associated with three dimensional wave is given by sai x y is equal to 1 + 1 by 2 x + root 3 by 2 k x minus omega t show that the wave propagates along a direction making an angle 60 degree with the x-axis

wave motion

What do you mean by Energy of Simple Hormonic Motion?

wave motion

What is mean by motion and time define it's all types with there parts and their s.i. units.

wave motion

explain the effects of doppler effect in satellite communication

wave motion