Home
Class 11
PHYSICS
An observer standing on a railway crossi...

An observer standing on a railway crossing receives frequency of 2.2 kHz and 1.8 kHz when the train approaches and recedes from the observer . Speed of the sound in air is 300 . ` s^(-1) ` . Velocity of the train ( in m . S^(-1)`)

A

60

B

30

C

90

D

70

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • DOPPLER EFFECT IN SOUND

    CHHAYA PUBLICATION|Exercise Very Short Answer Type Questions|8 Videos

  • DOPPLER EFFECT IN SOUND

    CHHAYA PUBLICATION|Exercise Short Answer Type Questions -I|2 Videos

  • DOPPLER EFFECT IN SOUND

    CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|15 Videos

  • CIRCULAR MOTION

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|11 Videos

  • ELASTICITY

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|10 Videos

Similar Questions

Explore conceptually related problems

A train moving with a velocity v is passing a station. A passenger standing on the station notices that the whistle emitted by the train changes its frequency by 50 Hz when it passes him. Given that the frequency of the whistle when the train is at rest with respect to the passenger is 500 Hz and the velocity of sound in air is 330 m/sec, the velocity of the train is

Find out the frequency of the first overtone emitted by a 1 . 25 m long organ pipe closed at one end. Given , velocity of sound in air = 320 m * s^(-1)

A car moving at a velocity of 17 ms^(-1) towards an approaching bus that blows a horn at a frequency of 640Hz on a straight track. The frequency of this horn appears to be 680 Hz to the car driver. If the velocity of sound in air is 340ms^(-1) , then the velocity of the approaching bus is