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A whistle giving out 450 Hz approaches a...

A whistle giving out 450 Hz approaches a stationary observer at a speed of 33 m/s.The frequency heard by the observer in Hz is (velocity of sound = 333m/s)

A

409

B

429

C

517

D

500

Text Solution

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The correct Answer is:
D
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BINA LIBRARY-WAVES-EXERCISE
  1. In a sinusoidal wave,the time required for a particular point to move ...

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  2. If two waves of same amplitude produce a resultant wave of same ampl...

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  3. A whistle giving out 450 Hz approaches a stationary observer at a spee...

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  4. A source of sound of frequency 500 Hz is moving towards an observer wi...

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  5. A stationary sound wave has a frequency 165 Hz.Distance between two co...

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  6. The equation of a stationary wave is y=10 sin((pix)/4)cos20pit.Distanc...

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  7. The length of a string tied to supports is 40 cm.Maximum wave length o...

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  8. The tension and diameter of a sonometer wire of fundamental frequency ...

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  9. The cylindrical tube open at both ends has fundamental frequency f in ...

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  10. A progressive wave is represented by

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  11. A sine wave travelling to right is represented by the equation y=asin(...

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  12. A transverse wave is represented by the equation y=y0sin2pi(vt-x/lambd...

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  13. Which of the following remains unchanged,when the wave propagates from...

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  14. The equation of a wave is y = 20 sin(100pit-0.08pix)cm.The frequency o...

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  15. The equation of a wave is y = 3 cospi(100t-x) cm.its wavelength is

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  16. In a sonometer, the waves produced are

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  17. If the tension of the wire is increased four times and its length redu...

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  18. A string when attached by a weight of 4 Kg weight give a note of frequ...

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  19. A closed organ pipe and a open organ pipe have their first overtone id...

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  20. The velocity of sound in air is 332 m/s.The frequency of the fundament...

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