Home
Class 12
PHYSICS
A wave of frequency 100 Hz is sent along...

A wave of frequency 100 Hz is sent along a string towards a fixed end. When this wave travels back after reflection, a node is formed at a distance of 10 cm frome the fixed end of the string. The speed of incident (and reflected) wave are

A

20 m/s

B

40 m/s

C

5 m/s

D

10 m/s

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT ( SECTION-D ( Assertion - Reason Type Questions ))|12 Videos

  • WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT ( SECTION-B ( Objective type Questions ))|45 Videos

  • WAVE OPTICS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-J (Aakash Challengers question))|1 Videos

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - D)|13 Videos

Similar Questions

Explore conceptually related problems

A wave frequency 100 Hz travels along a string towards its fixed end . When this wave travels back after reflection , a node is formed at a distance of 10 cm from the fixed end . The speed of the wave (incident and reflected) is

A pulse of a wavetrain travels along a stretched string and reaches the fixed end of the string. It will be reflected back with

A wave pulse of frequency 200 Hz, on a string moves a distance 8 m in 0.05 s. Calculate the wavelength of wave on string.

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?

A string of linear mass density 0.5 g cm^-1 and a total length 30 cm is tied to a fixed wall at one end and to a frictionless ring at the other end. The ring can move on a vertical rod. A wave pulse is produced on the string which moves towards the ring at a speed of 20 cm s^-1 . The pulse is symmetric about its maximum which is located at a distance of 20 cm from the end joined to the ring. (a) Assuming that the wave is reflected from the ends without loss of energy, find the time taken by the string to regain its shape. (b) The shape of the string changes periodically with time. Find this time period. (c) What is the tension in the string ?

A sinusoidal wave produced in a stretched string gets reflected and loses 36% of its energy in getting reflected from the fixed end of the string. Choose the correct statement from the

The speed of a wave in a streched string is 20ms^(-1) and its frequency is 50 Hz. Calculate the phase difference in radian between two points situated at a distance of 10 cm on the string.

Consider a string fixed at one end . A travelling wave given by the wave equation y = A sin ( omega t - k x) is incident on it . ltbr gt Show that at the fixed end of a string the waves suffers a phase change of pi , i.e., as it travels back as if the wave is inverted.

In a standing wave 4 nodes and 3 antinodes are formed between two fixed end of string of length 6 m.Then the wave length of the standing wave is

Speed of sound wave is v. If a reflector moves towards a stationary source emitting waves of frequency f with speed u, the wavelength of reflected waves will be

AAKASH INSTITUTE ENGLISH-WAVES-ASSIGNMENT ( SECTION-C ( Previous year Questions ))
  1. Which one of the following statements is true ?

    Text Solution

    |

  2. A point source emits sound equallt in all direction in a non -absoring...

    Text Solution

    |

  3. Two vibrating tunign forks produce progessive waves given by y(1)=4 ...

    Text Solution

    |

  4. Two waves are represented by the equations y(1)=asin(omegat+kx+0.57)...

    Text Solution

    |

  5. A hospital uses an ultrasonic scanner to locate tumours in a tissue. W...

    Text Solution

    |

  6. Two sound waves having a phase difference of 60^(@) have path differe...

    Text Solution

    |

  7. A transverse wave is represented by the equation y=y0sin.(2pi)/(lamd...

    Text Solution

    |

  8. A wave travelling in positive X-direction with A = 0.2 m velocity = 36...

    Text Solution

    |

  9. The phase difference between two waves represented by y(1)=10 ^(...

    Text Solution

    |

  10. A wave of frequency 100 Hz is sent along a string towards a fixed end....

    Text Solution

    |

  11. A standing wave having 3 node and 2 antinode is formed between two ato...

    Text Solution

    |

  12. Two waves of wavelength 50 cm and 51 cm produce 12 beat/s . The speed ...

    Text Solution

    |

  13. Two sound sources emitting sound each of wavelength lambda are fixed a...

    Text Solution

    |

  14. Two vibrating tunign forks produce progessive waves given by y(1)=4 ...

    Text Solution

    |

  15. A vehical , with a horn of frequency n is moving with a velocity of ...

    Text Solution

    |

  16. A whistle revolves is a circle with angular velocity w= 20 rad/s using...

    Text Solution

    |

  17. An observer moves towards a stationary source of sound with a speed 1/...

    Text Solution

    |

  18. A car is moving towards a high cliff. The car driver sounds a horn of ...

    Text Solution

    |

  19. The equation of a simple harmonic wave is given by y = 3 sin"(pi)/(2)...

    Text Solution

    |

  20. Which one of the following statements is true ?

    Text Solution

    |