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An echo repeats 5 syllables, each of whi...

An echo repeats 5 syllables, each of which requires ⅕th of a second to pronounce and ½ second elapses between the time the last syllable is heard and the first syllable is echoed. Is echoed. Calculated the distance of the reflecting surface, the velocity of sound being `332 m//s`.

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The correct Answer is:
`249`
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NN GHOSH-WAVE MOTION-EXERCISES
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  2. Show that the equation y=a sin (2pi nt-(2pi)/lambda x) respresents a p...

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  3. Write down the equation of a wave travelling in the negative direactio...

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  4. Sixty-four tuning forks are arranged in order of increasing frequency ...

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  5. Fifty-six tuning forks are arranged in order of increasing frequencies...

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  6. A fork of unknown frequency gives 4 beats per second when sounded with...

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  7. Calculate the velocity of sound in a gas in which two waves of wavelen...

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  8. The prongs of a tuning fork A originally in unison with a fork B os fr...

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  9. Two tuning forks A and B when sounded together produce 2 beats per sec...

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  10. Two tuning forks when sounded together produce 4 beats per second. The...

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  11. A wave of frequency 500 Hz has a phase velocity of 350 m//s. (a) How f...

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  12. A sensitive microphone with its receiving surface turned towards a lon...

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  13. A hollow cylinder of length 1 m is divided by a thin flexible by a thi...

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  14. Sound waves from a tuning fork A reach a point P by two separate paths...

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  15. The following equations represent transvers waves : z(1)=A cos (ky-ome...

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  16. Three sound waves of frequencies 320, 344 and 280 are produced simulta...

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  17. An echo repeats 5 syllables, each of which requires ⅕th of a second to...

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  18. A plane wave zeta= A cos (omega t-kx) propagates in the reference fram...

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  19. Which of the following represents (a) a progressive wave and (b) a sta...

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  20. The shape of a wave is represented by y=(1)/(1+x^(2)) at t=0 and y=(1)...

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