Home
Class 12
PHYSICS
A wave pulse, travelling on a two piece ...

A wave pulse, travelling on a two piece string, gets partically reflected and partically transmitted at the junction, The reflected wave is inverted in shape as compard to the incident one. If the incident wave has speed `v` and the transmitted wave `v'`

A

`v' gt v`

B

`v' = v`

C

`v' lt v`

D

nothing can be said about the relation of `v` and `v'`.

Text Solution

Verified by Experts

The correct Answer is:
C

Second is denser so speed will decrease.
Promotional Banner

Topper's Solved these Questions

  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 2 PART I|21 Videos
  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 2 PART II|19 Videos
  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 1 PART I|23 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 harmonic wave is travelling on string 1. At a junction with string 2 it is partly reflected and partly transmitted. The linear mass density of the second string is four times that of the first string, and that the boundary between the two strings is at x=0. If the expression for the incident wave is y_i = A_i cos (k_1 x-omega_1t) (a) What are the expressions for the transmitted and the reflected waves in terms of A_i, k_1 and omega_1 ? (b) Show that the average power carried by the incident wave is equal to the sum of the average power carried by the transmitted and reflected waves.

The displacement of the medium in a sound wave is given by the equation y_(1) = A cos(ax + bt) where A , a and b are positive constants. The wave is reflected by an obstacle situated at x = 0 . The intensity of the reflected wave is 0.64 times that of the incident wave. (a) What are the wavelength and frequency of incident wave? (b) Write the equation for the reflected wave. ( c ) In the resultant wave formed after reflection, find the maximum and minimum values of the particle speeds in the medium. (d) Express the resultant wave as a superposition of a standing wave and a travelling wave. What are the positions of the antinodes of the standing wave ? What is the direction of propagation of travelling wave?

A sound wave travelling along an air column of a pipe gets reflected at the open end of the pipe. What is the phase difference between the incident and reflected waves at the open end?

When a wave pulse travelling in a string is reflected from rigid wall to which string is tied as shown in figure. For this situation two statements are given below. (1) The reflected pulse will be in same orientation of incident pulse due to a phase change of pi radians (2) During reflection the wall exert a force on string in upward directon for the above given two statements choose the correct option given below

A progressive wave gets reflected at a boundary such that the ratio of amplitudes of the reflected and incident wave is 1 :2 . Find the percentage of energy transmitted .

Two wires of different linear mass densities are soldered together end to end and then stretched under a tension F . The wave speed in the first wire is thrice that in the second. If a harmonic wave travelling in the first wire is incident on the junction of the wires and if the amplitude of the incident wave is A = sqrt(13) cm , find the amplitude of reflected wave.

A travelling wave of amplitude 5 A is partically reflected from a bounday with the amplitude 3A . Due to superposition of two waves with different amplitude in opposite direction a standing wave pattern is formed. Datermine the ratio of amplitude at antinode to node.

Two wires of different densities are soldered together end to end then stretched under tension T. The waves speed in the first wire is twice that in the second wire. (a) If the amplitude of incident wave is A, what are amplitudes of reflected and transmitted waves? (b) Assuming no energy loss in the wire, find the fraction of the incident power that is reflected at the junction and fraction of the same that is transmitted.

show that when reflection takes place from a boundary separating two media and the velocity in the second medium is infinitely large , the amplitude of the reflected wave is equal to the amplitude of the incident wave and there is a phase change of pi in the displacement wave.

A plane wavefront incident on a reflecting surface at and angle of 30^(@) with vertical. Find the angle (acute) of reflected wave with vertical.

RESONANCE ENGLISH-TRAVELLING WAVES-Exercise- 1 PART II
  1. Three blocks I, II, & III having mass of 1.6 kg, 1.6 kg and 3.2 kg rep...

    Text Solution

    |

  2. Three consecutive flash photographs of a travelling wave on a string w...

    Text Solution

    |

  3. A heavy ball is suspended from the ceiling of a motor car through a li...

    Text Solution

    |

  4. A wave moving with constant speed on a uniform string passes the point...

    Text Solution

    |

  5. A sinusoidal wave with amplitude y is travelling with speed v on a str...

    Text Solution

    |

  6. Sinusoidal waves 5.00 cm in amplitude are to be transmitted along a st...

    Text Solution

    |

  7. The average power transmitted through a given point on a string suppor...

    Text Solution

    |

  8. Two waves of same amplitude a and frequency v and having a phase diffe...

    Text Solution

    |

  9. A wave moving with constant speed on a uniform string passes the point...

    Text Solution

    |

  10. Two wave of amplitude A(1), and A(2) respectively and equal frequency ...

    Text Solution

    |

  11. A wave pulse, travelling on a two piece string, gets partically reflec...

    Text Solution

    |

  12. The following figure depicts a wave travelling in a medium. Which pair...

    Text Solution

    |

  13. Three coherent waves having amplitudes 12mm, 6mm and 4mm arrive at a g...

    Text Solution

    |

  14. A wave representing by the equation y = A cos(kx - omegat) is suerpose...

    Text Solution

    |

  15. A wire having a lineat density of 0.05 gm/ cc is stretched between two...

    Text Solution

    |

  16. Equations of a stationery and a travelling waves are y(1)=a sin kx cos...

    Text Solution

    |

  17. Two uniform wires A and B are of same metal and have equal masses. The...

    Text Solution

    |

  18. A steel wire of mass 4.0 g and length 80 cm is fixed at the two ends. ...

    Text Solution

    |

  19. Two wires of same material of radii 2r and r are welded together end t...

    Text Solution

    |

  20. In a stationary wave represented by y = a sin omegat cos kx, amplitude...

    Text Solution

    |