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A passenger is sitting in a fast moving ...

A passenger is sitting in a fast moving train. The engine of the train blows a whistle of frequency ‘n\ If the apparent frequency of sound heard by the passenger is n', then

A

`n'ltn`

B

`n'gtn`

C

`n'=n`

D

`n' ge n`

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TARGET PUBLICATION-Sound-Exercise
  1. Two aeroplanes A and B, each moving with a speed of 720 km/hour, are m...

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  2. An engine blowing a whistle of frequency 133 Hz moves with a velocity...

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  3. A passenger is sitting in a fast moving train. The engine of the train...

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  4. A source of sound and a listener are both moving in the same direction...

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  5. If a stationary observer notes a change of 25% in the frequency of a w...

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  6. A train A is travelling at a speed of 108 km hr^(-1). The train approa...

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  7. Two cars are approaching each other with same speed of 20 m//s. A man ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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