the apparent frequency of the echo heard by the driver is

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A source of sound of sound is approaching an observer with speed of 30 ms^−1 and the observer is approaching the source with a speed of 60 ms^−1 . Then the fractional change in the frequency of sound (speed of sound in air = 330 ms^−1) is
12
Nov
A source of sound of sound is approaching an observer with speed of 30 ms^−1 and the observer is approaching the source with a speed of 60 ms^−1 . Then the fractional change in the frequency of sound (speed of sound in air = 330 ms^−1) is A car moving with velocity 50 m s [...]
Posted in: Chapter 17 - Wave Motion , MTG NEET Physics , Part 1 ,
Tags: A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 kHz. The velocity of sound is 350 m/s , the apparent frequency of the echo heard by the driver is ,
A police car with a siren of frequency 8kHz is moving with uniform velocity 36km/hr towards a tall building which reflects the sound waves. The speed of sound in air is 320m/s. The frequency of the siren heard by the car driver is
12
Nov
A police car with a siren of frequency 8kHz is moving with uniform velocity 36km/hr towards a tall building which reflects the sound waves. The speed of sound in air is 320m/s. The frequency of the siren heard by the car driver is A car moving with velocity 50 m s towards a wall sounds [...]
Posted in: Chapter 17 - Wave Motion , MTG NEET Physics , Part 1 ,
Tags: A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 kHz. The velocity of sound is 350 m/s , the apparent frequency of the echo heard by the driver is ,
A train approaching a railway crossing at a speed of 120kmh^−1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of sound in air is 340ms^−1. What will be the frequency heard by a person standing on a road perpendicular to the track through the crossing at a distance of 400 m from the crossing ?
12
Nov
A train approaching a railway crossing at a speed of 120kmh^−1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of sound in air is 340ms^−1. What will be the frequency heard by a person standing on a road perpendicular to the track through the [...]
Posted in: Chapter 17 - Wave Motion , MTG NEET Physics , Part 1 ,
Tags: A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 kHz. The velocity of sound is 350 m/s , the apparent frequency of the echo heard by the driver is ,
A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 kHz. The velocity of sound is 350 m/s, the apparent frequency of the echo heard by the driver is
12
Nov
A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 kHz. The velocity of sound is 350 m/s, the apparent frequency of the echo heard by the driver is A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 [...]
Posted in: Chapter 17 - Wave Motion , MTG NEET Physics , Part 1 ,
Tags: A car moving with velocity 50 m s towards a wall sounds a horn of frequency of 1.2 kHz. The velocity of sound is 350 m/s , the apparent frequency of the echo heard by the driver is ,