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Explain some practical applications of b...

Explain some practical applications of beats.

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SL ARORA-Waves-EXERCISE
  1. Explain some practical applications of beats.

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  2. A radio station broadcasts its programme at 219.3 metre wavelength. De...

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  3. The audible range of a human ear is 20 Hz to 20 kHz. Convert this into...

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  4. The speed of a wave in a mediium is 960ms^(-1). If 3600 waves are pass...

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  5. If the splash is hear 4.23 seconds after a stone is dropped into a wel...

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  6. A stone is dropped into a well and its splash is heard at the mouth of...

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  7. A body sends waves 100mm long through medium A and 0.25m long in mediu...

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  8. A steel wire 70cm long has a mass of 7.0g. If the wire is under a tens...

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  9. The speed of a transverse wave in a stretched string is 348 ms^(-1), w...

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  10. Calculate the velocity of transverse wave in a copper wire 1 mm^(2) in...

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  11. A wave pulse is travelling on a string of linear mass density 1.0 g cm...

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  12. The diameter of an iron wire is 1.20 mm. If the speed of transverse wa...

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  13. The speed of sound in a liquid is 1500 ms^(-1).The density of the liqu...

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  14. The longitudinal waves starting from a ship return from the bottom of...

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  15. At 10^5 Nm^(-2) atmospheric pressure the density of air is 1.29 kg m^(...

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  16. At normal temperature and pressur, 4g of He occupies a volume of 22.4 ...

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  17. Find the temperature at which the velocity of sound in air will be 1 1...

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  18. The velocity of sound in air is 332 ms^(-1) at 0^@ C .At what temperat...

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  19. The ratio of the velocity of sound in Hydrogen gas (gamma=7/5) to that...

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  20. An observer sets his watch by the sound of a signal fired from a tower...

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  21. A sound wave propagating in air has a frequency of 4000Hz. Calculate t...

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