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A whistle emitting a sound of frequency `440 H`z is tied to string of `1.5 m` length and rotated with an angular velocity of `20 rad//sec` in the horizontal plane. Then the range of frequencies heard by an observer stationed at a large distance from the whistle will `(v=330 m//s)`

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402 Hz to 484 Hz
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A whistle emmitting a sound of frequency 440 Hz is tied to a string of 1.5m length and rotated with an angular velocity of 20rad s^(-1) in the horizontal plane. Calculate the range of frequencies heard by an observer stationed at a large distance from the whistle.

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A whistle emitting a sound of frequency 450 Hz approaches a stationary observer at a speed of 33 m/s. Velocity of sound is 330 m/s. The frequency heard by the observer, in Hz, is :

A whistle of frequency 500 Hz tied to the end of a string of length 1.2 m revolves at 400 rev / min . A listener standing some distance away in the plane of rotation of whistle hears frequencies in the range (speed of sound = 340 m / s )

A whitle of frequency 540 Hz rotates in a horizontal circle of radius 2 m at an angular speed of 15(rad)/(s) . What is the lowest and the highest frequency heard by a listener a long distance away at rest with respect to the centre of the circle? (Velocity of sound in air is c=330(m)/(s) .)

NN GHOSH-DOPPLER EFFECT-EXERCISES
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  2. Show that Dopple effect is greater when the source approaches the obse...

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  4. A upersonic jet plane of Mach 1.5 is sighted overhead. How far will it...

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  5. Show that the frequency of sound vibrations emitted by a source will a...

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  6. The ratio of the apparent frequencies of the hom of a car when approch...

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  7. Can you go fast enough to have red light appear green ? lambda ("red")...

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  9. A sonometer wire under tension of 64 N vibrating in its fundamental mo...

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  10. A receiver and a source of sonic oscillations of frequency v(0) = 2000...

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  11. A train approaching a hill at a speed of 36 kmph sounds a whistle of f...

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  12. A source of sound of frequency 1000 H(Z) moves unifornly along a stra...

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  13. A source of sound of frequency 2000 Hz moves towards a wall velocity u...

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  14. A stationary source sends forth monochromatic (n = 500 Hz) sound. A wa...

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  15. A source of sonic oscillations of frequency n(0) = 1500 Hz moves at ri...

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  16. When a spectral line of wavelength lambda = 0.60 mu m is observed in t...

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  17. A whistle emitting a sound of frequency 440 Hz is tied to string of 1....

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  18. A source of sound is moving along a circular orbit of radius 3 meter w...

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  19. A bus is moving towards a huge wall with a velocity of 5m//s^(-1). The...

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  20. A train approaching a crossing at a speed of 100 km/h sounds a whistle...

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