Home
Class 11
PHYSICS
A source is approaching towoed a wall as...

A source is approaching towoed a wall as shown in figure .We have three observes `O_(1),O_(2) `and `O_(3).
observer `O_(2) is over the source itself . Let `f_(1),f_(2)and `f_(3) be the beat frequencires heard by `O_(1),O_(2) `and `O_(3)` between direct sound from the source and reflected sound from the wall . then

A

(a)`f_(3)=0

B

`f_(1)gt f_(2)`

C

both(a) and (b) are wrong

D

both (a) and (b) are correct

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    DC PANDEY ENGLISH|Exercise Matrix Matching|16 Videos

  • WAVE MOTION

    DC PANDEY ENGLISH|Exercise Integer Type Question|11 Videos

  • WAVE MOTION

    DC PANDEY ENGLISH|Exercise More Than One Option is Correct|23 Videos

  • VECTORS

    DC PANDEY ENGLISH|Exercise Medical enrances gallery|9 Videos

  • WORK, ENERGY & POWER

    DC PANDEY ENGLISH|Exercise Level 2 Comprehension Based|2 Videos

Similar Questions

Explore conceptually related problems

What is the nature of Al_(2)O_(3) and B_(2)O_(3) ?

A source of sound of frequency f is approaching towards a wall with speed upsilon_(s) . Speed of sound is upsilon . Three observers O_(1) , O_(2) and O_(3) are at different locations as shown . Find the beat frequency as observed by three different observers.

A small source of sound moves on a circle as shown in the figure and an observer is standing on O. Let n_1 , n_2 and n_3 be the frequencies heard when the source is at A, B and C respectively. Then

A small source of sound moves on a circle as shown in figure and an observer is sitting at O. Let v_1,v_2,v_3 be the frequencies heard when the source is at A,B and C respectively. .

Arrange O _(2) H_(2)O_(2) and O _(3) in the correct order of decreasing O-O bond length.

The correct order of O - O bond length in O_(2)H_(2)O_(2) and O_(3) is

A sound source S and observers O_1 O_2 are placed as shown. S is always at rest and O_1,O_2 start moving with velocity V_0 at t=0 . At t=5 sec, f_1 and f_2 represent apparent frequencies of sound received by O_1 and O_2 respectively . The ratio of f_1 and f_2 is

Whal the source of O_(2) produced during photosynthesis ?

The CORRECT statements about the structure of H_(2)O_(2),O_(2)F_(2) and OF_(2) is /are

Which of following true structure of F_(2)O_(2) :

DC PANDEY ENGLISH-WAVE MOTION-Comprehion Type Questions
  1. [Q.Nos. 1-2] y(x, t) equation of a lingiutudinal wave is given as y ...

    Text Solution

    |

  2. y(x, t) equation of a lingitudinal wave is given as y = 10^(-2)2(pi)...

    Text Solution

    |

  3. [Q. Nos. 3-4] Difference in frequencies between 3rd overtone of closed...

    Text Solution

    |

  4. [Q. Nos. 3-4] Difference in frequencies between 3rd overtone of closed...

    Text Solution

    |

  5. In the shown figure answer the following two question. If P(i),P(...

    Text Solution

    |

  6. [Q.Nos.5-6] In the shown figure answer the following two question. ...

    Text Solution

    |

  7. [Q. Nos. 7-8] You have three forks A, B, and C Fork B has a frequency ...

    Text Solution

    |

  8. The possible beat frequencies when A and C are sounded together are

    Text Solution

    |

  9. A source is approaching towoed a wall as shown in figure .We have thre...

    Text Solution

    |

  10. Given frequency of source f=100Hz,v(s)=20m//s and v=330 m//s. The bea...

    Text Solution

    |

  11. The position of a transverse wave travelling in medium along positive ...

    Text Solution

    |

  12. The position of a transverse wave travelling in medium along positive ...

    Text Solution

    |

  13. A string fastened at both ends has successive resonances with wavelen...

    Text Solution

    |

  14. A string fastened at both ends has successive resonances with wavelen...

    Text Solution

    |

  15. A composite wire is made by joining two uniform wires. If l1 = l2= l a...

    Text Solution

    |

  16. A composite wire is made by joining two uniform wires. If l1 = l2= l a...

    Text Solution

    |

  17. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |

  18. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |

  19. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |

  20. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |