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Where will a person hear maximum sound, ...

Where will a person hear maximum sound, at node or antinode?

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At nodes. Amplitude is minimum and strain is maximum. So, pressure variation is maximum at nodes. Hence, a loud sound is heard at nodes.
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A soure of sound of frequency 165 Hz generates sound waves which get fully reflected from a wall . A person standing at the wall starts moving away from the wall. The minimum distance of the point from the wall at which the person hears maximum sound is (velcoity of sound = 330 ms^(-1) )

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A person hears the sound of the explosion of a bomb after 5 s and another person hears the sound after 6 s. The ratio of minimum and maximum possible distance between the person is _____. ( velocity of sound in air is 330 ms^(-1) )

Two sources are placed from a person P as shown in figure. The speed of sound in air is 320 m//s . (a) If sound signal is continuously varied from 500 Hz to 2500 Hz , for which frequency listener will hear minimum sound intensity. (b) Find the frequencies in audible range (20-20000 Hz) for which listener will hear maximum sound intensity.

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MODERN PUBLICATION-WAVES-REVISION EXERCISES
  1. What is meant by fidelity of instrument ?

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  2. On which factor the pitch of the sound depends ?

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  3. Where will a person hear maximum sound, at node or antinode?

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  4. DOPPLER EFFECT

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  5. In a stationary longitudinal wave, nodes are points of

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  6. Doppler effect is applicable for

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  7. According to Newton, when a wave passes through a gas, changes taking ...

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  8. Where should a stretched wire, held between two fixed supports, be plu...

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  9. When a wave coming from a medium where its velocity is………………meets a me...

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  10. During the formation of a stationary wave, the medium is broken into l...

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  11. The second overtone can also be called as ………………………harmonic.

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  12. …………………is a musical instrument in which sound is produced by setting a...

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  13. In an……………………Organ pipe, both odd and even harmonics are present.

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  14. If the prong of a tuning fork is filed, its frequency………………and if it l...

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  15. Pitch of the sound appears to…………………………when the source of sound moves ...

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  16. When the observer is at rest and the source moves with a supersonic sp...

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  17. What is a wave function ? Write its general form.

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  18. Distinguish between periodic and harmonic wave function.

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  19. Distinguish between longitudinal and transverse waves.

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  20. State Newton's formulas for velocity of sound in air. Point out the er...

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