Home
Class 12
PHYSICS
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

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 2 PART II|19 Videos

  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 2 PART III|15 Videos

  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 1 PART II|30 Videos

  • TEST SERIES

    RESONANCE ENGLISH|Exercise PHYSICS|130 Videos

  • WAVE ON STRING

    RESONANCE ENGLISH|Exercise Exercise- 3 PART II|7 Videos

Similar Questions

Explore conceptually related problems

A transverse wave is travelling on a string. The equation of the wave

The equation of a light wave is written as y=Asin(kx-omegat) . Here y represents

A travelling wave y=A sin (kx- omega t +theta ) passes from a heavier string to a lighter string. The reflected wave has amplitude 0.5A . The junction of the strings is at x=0 . The equation fo the refelcted wave is :

A travelling wave y = A sin (k x - omega t + theta) passes from a heavier string to a lighter string . The juction of the strings is at x = 0 . The equation of the reflected wave is

A travelling wave y=Asin(kx-omegat+theta) passes from a heavier string to a lighter string. The reflected wave has amplitude 0.5A . The junction of the string is at x=0 The equation of the reflected is :

When light suffers reflection at the interface between water and glass, the change of phase in the reflected wave is

When light wave suffers reflection at the interface from air to glass, the change in phase of the reflected wave is equal to

A wave travelling along positive x-axis is given by y = A sin(omegat-kx) . If it is reflected from rigid boundary such that 80% amplitude is reflected, then equation of reflected wave is

A travelling wave in a stretched string is described by the equation y = A sin (kx - omegat) the maximum particle velocity is

The equation of a plane progressive wave is y=0.04sin4pi[t-(x)/(20)] . When it is reflected at a denser medium (medium with lesser wave velocity) at x=0, intensity of reflected wave is 81% of that of the incident wave. The equation of the relfected wave is:

RESONANCE ENGLISH-TRAVELLING WAVES-Exercise- 2 PART I
  1. Graph show three waves that are separately send along a string that is...

    Text Solution

    |

  2. A transverse periodic wave ona strin with a linear mass density of 0.2...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  6. A rod of length l rotates with a uniform angular velocity omega about ...

    Text Solution

    |

  7. In the above question if both are in opposite direction then the veloc...

    Text Solution

    |

  8. Which of the following function correctly represents the travelling wa...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. Figure shows a rectangular pulse and triangular pulse approaching towa...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. Equation of a standing wave is expressed as y = 2A sinomegat coskx. In...

    Text Solution

    |

  16. A sonometer wire when vibrated in full length has frequency n. Now, it...

    Text Solution

    |

  17. A string of length L, fixed at its both ends is vibrating in its 1^(st...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |