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A wave travels on a light string. The eq...

A wave travels on a light string. The equation of the waves is `y= A sin (kx - omegat + 30^@)`. It is reflected from a heavy string tied to an end of the light string at x = 0. If 64% of the incident energy is reflected, then the equation of the reflected wave is

A

`Y = 0.8 A sin (kx - omegat + 30^(@) + 180^(@))`

B

`Y = 0.8 A sin (kx + omegat + 30^(@) + 180^(@))`

C

`Y = 0.8 A sin (kx + omegat - 30^(@))`

D

`Y = 0.8 A sin (kx + omegat + 30^(@))`

Text Solution

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The correct Answer is:
C
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RESONANCE-WAVE ON STRING -Exercise- 2 PART I
  1. Graph shows three waves that are separately sent along a string that i...

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  2. A transverse periodic wave on a string with a linear mass density of 0...

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  3. A heavy but unifrom rope of length L is suspended from a celling . A p...

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  4. An object of specific gravity rho is hung from a thin steel wire. The ...

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  5. A circular loop of rope of length L rotates with uniform angular veloc...

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  6. A circular loop of rope of length L rotates with uniform angular veloc...

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  7. A circular loop of rope of length L rotates with uniform angular veloc...

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  8. which of the following function corrtly represent the traveling wave e...

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  9. A 75 cm string fixed at both ends produces resonant frequencies 384 Hz...

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  10. Two wave pulses travel in opposite directions on a string and approach...

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  11. The figure shown at time t = 0 second, a rectangular and triangular pu...

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  12. When a wave pulse travelling in a string is reflected from rigid wall ...

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  13. A wave travels on a light string. The equation of the waves is y= A si...

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  14. The wave-function for a certain standing wave on a string fixed at bot...

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  15. Equation of a standing wave is generally expressed as y=2Asinomegatcos...

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  16. A sonometer wire is divided in many segments using bridges. If fundame...

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  17. A string of length L fixed at its at its both ends is vibrating in its...

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  18. A stone in hung in air from a wire which is stretched over a sonometer...

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  19. A wire of density 9gm//cm^(3) is streched between two clamps 1.00m apa...

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  20. A 20 cm long rubber string fixed at both ends obeys Hook's law. Intial...

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