Home
Class 11
PHYSICS
A whistle of frequency 540 Hz rotates in...

A whistle of frequency 540 Hz rotates in a horizontal circle of radius 2 m at an angular speed of 15 rad//s. The highest frequency heard by a listener at rest with respect to the centre of circle (velocity of sound in air =`300 ms^-1`)

A

`590Hz`

B

`594Hz`

C

`598Hz`

D

`602Hz`

Text Solution

Verified by Experts

The correct Answer is:
B

`n._(B)=n((V)/(V-V_(S)))`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A whitle of frequency 540 Hz rotates in a horizontal circle of radius 2 m at an angular speed of 15(rad)/(s) . What is the lowest and the highest frequency heard by a listener a long distance away at rest with respect to the centre of the circle? (Velocity of sound in air is c=330(m)/(s) .)

A whistle of frequency of 540Hz rotates ini a circle of radius 2m at an angular speed of 15rad // s. What is the lowest and highest frequency heard by a listener a long distance away at rest w.r.t centre of the circle. Can the apparent frequency be ever equal to the actuall frequency ? Take v=330m//s

A whistle of frequency 540 H_(Z) rotates in a circle of radius 2 m at a linear speed of 30 m//s . What is the lowest and highest frequency heard by an observer a long distance away at rest with respect to the centre of circle ? Take speed of sound of sound in air as 330 m//s . Can the apparent frequency be ever equal to actual ?

A whistle of frequency 540 Hz moves in a circle of radius 60.0 cm at an angular speed of 20.0 rad/s. What are the (a) lowest and (b) highest frequencies heard by a listener a long distance away, at rest with respect to the center of the circle?

A whistle of frequency 540 Hz is moving in a circle of radius 2 ft at a constant angular speed of 15 rad/s. What are the lowest and highest frequencies heard by a listener standing at rest, a long distance away from the centre of the circle? (Velocity of sound in air is 1100ft/s)

A whistle of frequency 540 Hz is moving in a circle of radius 2 ft at a constant angular speed of 15 rad//s. What are the lowest and height frequencies heard by a listener standing at rest, a long distance away from the centre of the circle? (velocity of sound in air is 1100 ft//sec .)

A whistle emitting a loud sound of frequency 540 Hz is whirled in a horizontal circle of radius 2 m and at a constant angular speed of 15 rad//s . The speed of sound is 330 m//s . The ratio of the highest to the lowest frequency heard by a listener standing at rest at a large distance from the center of the circle is

A source of sound of frequency 256 Hz is rotating in a circle of radius 3 m with angular speed of 20 rad/s. A listener is standing at rest along the line of centre of the circle. Under which position of the source of sound the listener will hear sound of (a) maximum frequency (b) minimum frequency (c) same frequency as the frequency of source.

A whistle 'S' of frequency v revolves in a circle of radius R at a constant speed v. what is the ratio of the largest and smallest frequency detected by a detector D, at rest, at a distance 2 R from the centre of the circle as shown in the figure? (take speed of sound in air as c)

NARAYNA-WAVES-Exercise-I (H.W)
  1. A train in approaching a station with a uniform velocity of 72kmph and...

    Text Solution

    |

  2. A train is travelling at 120kmph and blows a whistle of frequency 1000...

    Text Solution

    |

  3. A source and an observer move away from each other with a velocity of ...

    Text Solution

    |

  4. An observer is moving on a circular path of radius r with speed V(0) a...

    Text Solution

    |

  5. A source of sound moves towards a listener with a velocity equal to th...

    Text Solution

    |

  6. A source of sound and an observer are approaching each other with the ...

    Text Solution

    |

  7. A source of sound produces waves of wave length 48cm. This source is m...

    Text Solution

    |

  8. A whistle producing sound waves of frequencies 9500 Hz and above is ap...

    Text Solution

    |

  9. A whistle of frequency 540 Hz rotates in a horizontal circle of radius...

    Text Solution

    |

  10. If a source emitting waves of frequency f moves towards an observer wi...

    Text Solution

    |

  11. The velocity of a listener who is moving away from a stationary source...

    Text Solution

    |

  12. Two trains are moving towards each other on parallel tracks at speeds ...

    Text Solution

    |

  13. A boy sitting on a swing which is moving to an angle of 30^(@) from th...

    Text Solution

    |

  14. A source of sound produces waves of wave length 48cm. This source is m...

    Text Solution

    |

  15. A siren of frequency n approaches a stationary observer and then recee...

    Text Solution

    |

  16. Two sources S(1) and S(2) of sound having frequencies 338, 342 Hz are ...

    Text Solution

    |

  17. A vehicle moving on a straight road sounds a whistle of frequency 256H...

    Text Solution

    |

  18. If a vibrating tuning fork of frequency 255Hz is approaching with a ve...

    Text Solution

    |

  19. Two sources A and B are sounding notes of frequency 680 Hz. A listener...

    Text Solution

    |

  20. A source of sound S is travelling at (100)/(3)(m)/(s) along a road, to...

    Text Solution

    |