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A sound wave of frequency 80 Hz is trave...

A sound wave of frequency `80 Hz` is travelling with speed `320 m//s`.
(a) Find the change in phase at a given position in `400 ms`
(b) Find the phase difference between two positions seperated by `20 cm` at a particular instant.

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Verified by Experts

The correct Answer is:
(a) `2 pi fDeltat = 64 pi` , (b) `(2pifDeltax)/(v) = (pi)/(10)`
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RESONANCE ENGLISH-SOUND WAVES-Exercise- 1 PART - I
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  2. A sound wave of frequency 80 Hz is travelling with speed 320 m//s. (...

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  4. The pressure at a point varies from 99980 Pa to 100020 Pa due to simpl...

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  7. Find the speed of sound in a mixture of 1 mole of helium and 2 moles o...

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  8. A gas mixture has 24% of Argon, 32% of oxygen, and 44% of CO(2) by mas...

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  9. Two sound waves one in air and the other in fresh water are equal in i...

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  10. A point A is located at a distance r = 1.5 m from a point source of so...

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  11. Two point sound sources A and B each to power 25pi w and frequency 850...

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  12. Two identical loudspeakers are located at point A & B, 2 m apart. The ...

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  14. Two source of sound, S(1) and S(2), emitting waves of equal wavelength...

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  15. A sound source, detector and a cardboard are arranged as shown in figu...

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  16. A metallic rod of length 1 m is rigidly clamped at its midpoint. Longi...

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  17. The equation of a longitudinal standing wave due to superposition of t...

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  18. A closed organ pipe has length L. The air in it is vibrating in third ...

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  19. The speed of sound in an air column of 80 cm closed at one end is 320 ...

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