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An engine is moving on a circular track ...

An engine is moving on a circular track with a constant speed. It is blowing a whistle of frequency 500 Hz. The frequency received by an observer standing stationary at the centre of the track is

A

500 Hz

B

more than 500 Hz

C

less than 500 Hz

D

more or less than 500 Hz depending on the actual speed of the engine

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TARGET PUBLICATION-Sound-Exercise
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  2. Two cars are approaching each other with same speed of 20 m//s. A man ...

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  3. An engine is moving on a circular track with a constant speed. It is b...

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  4. An engine driver moving towards a wall with a velocity of 60 m//s emit...

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  5. An object producing a pitch of 600 Hz approaches a stationary person i...

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  6. When both source and listener approach each other with a velocity equa...

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  7. The difference between the apparent frequency 71. of a source of sound...

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  8. If sound velocity is v, velocity of observer is v0 and velocity of sou...

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  9. Consider a source of sound S and an observer P. The frequency of sound...

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  10. A car is travelling with a velocity of 40 m//s towards a source of sou...

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  11. What should be the velocity of sound from a source w.r.t. an observer,...

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  12. The frequency of a whistle of the engine of an express train moving wi...

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  13. Two cars are moving on two perpendicular roads towards a crossing with...

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  14. An observer starts moving with uniform acceleration ‘a’ towards a stat...

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  15. The frequency of a note emitted by a source changes by 20% as it appro...

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  16. A source of sound is travelling towards a stationary observer. The fre...

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  17. A man is watching two trains, one leaving and the other coming in with...

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  18. A police car moving at 22 m//s, chases a motorcyclist. The police man ...

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  19. An observer moves towards a stationary source of sound with a speed 1/...

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  20. The number of waves contained in unit length of the medium is called

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