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When source of sound moves towards a sta...

When source of sound moves towards a stationary observer, the wavelength of sound received by him

A

decreases while frequency increases

B

remains the same whereas frequency increases

C

increases and frequency also increases

D

decreases while frequency remains the same

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TARGET PUBLICATION-Sound-Exercise
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  7. A train is moving on a straight track with speed 20 ms^(-1) . It is bl...

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  8. The pitch of the whistle of an engine appears to drop to (frac(5)(6)^(...

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  9. A motor car blowing a horn of frequency 124 vib//s moves with a veloci...

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  10. A train is moving with a uniform speed of 33 m//s and an observer is a...

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  11. Two cars moving in opposite directions approach each other with speed ...

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  12. A siren emitting a sound of frequency 800 Hz moves away from an observ...

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  13. A car with a hom of frequency 620 Hz travels towards a large wall with...

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  14. A police car with a siren of frequency 8 kHz is moving with uniform ve...

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  15. A source of sound S is moving with a velocity 50 m//s towards a statio...

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  16. A railway engine whistling at a constant frequency moves with a consta...

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  17. A source of sound S emitting waves of frequency 100 Hz and an observer...

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  18. A drone fitted with siren in flying directly away from the drone opera...

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  19. A siren placed at a railway platform is emitting a sound of frequency ...

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  20. Two trains A and B are approaching a platform from opposite direction...

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