Home
Class 11
PHYSICS
A source of sound of frequency 500 Hz is...

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s.The speed of the sound id 330 m/s.The frequency heard by the observer is

A

545 Hz

B

58z Hz

C

458 Hz

D

550 Hz

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • WAVES

    BINA LIBRARY|Exercise EXERCISE|97 Videos

  • THERMODYNAMICS

    BINA LIBRARY|Exercise EXERCISE |59 Videos

  • WORK,ENERGY AND POWER

    BINA LIBRARY|Exercise EXERCISE|83 Videos

Similar Questions

Explore conceptually related problems

A source of sound of frequency 256 Hz is moving rapidly towards a wall with a velocity of 5 m(s)^-1 .How nmany beats per second will be heard if sound travel at a speed of 330 m(s)^-1 and the observer is behind the source.

A stationary sound wave has a frequency 165 Hz.Distance between two consecutive nodes is(speed of the sound in air = 330 m/s)

A whistle giving out 450 Hz approaches a stationary observer at a speed of 33 m/s.The frequency heard by the observer in Hz is (velocity of sound = 333m/s)

An ambulance blowing a siren of frequency 700 Hz is travelling towards a wall with a speed 2 m(s)^-1.Calculate the number of beats heard in one second by the driver of the ambulance.(velocity of sound = 350 m(s)^-1 )

A siren is fitted on a car going towards a vertical wall at a speed of 36 kmh^(-1) . A person standing on the ground behind the car, listeners to the siren sound coming directly from the source as well as that coming after reflection from the wall. Calculate the apparant frequencies of both the sounds. Velocity of sound 340ms^(-1) , frequency of the siren 500Hz.

At each of the stations A and B a siren its surrounding with a constant of frequency pf 250 Hz.A cyclist from A proceeds towards B with a velocity 12km/hr and hears 5 beats per second.Calculate the velocity of sound.

The velocity of sound in air is 332 m/s.The frequency of the fundamental node of an open pipe 50 cm long will be

A string 25 cm long and having a mass of 2.5 g is under tension.When the string is vibrating in its first overtone and air in a 40 cm long closed pipe in its fundamental frequency 8 beats per second are heard.it is observed that decreasing the tension in the string decreases the beat frequency.Find the tension in the string.[Velocity of sound is 320 m/s]

A body of mass 2kg moving with velocity 10 m/s collides another body of mass 500 g and moving with velocity 4 m/s. After collision if the 2nd body attains velocity of 8m/s, what will be the velocity of first body?

A radio signal has wave length 300 m and speed 3 xx 10^8 m//s . Find out the frequency of the signal.

BINA LIBRARY-WAVES-EXERCISE
  1. If two waves of same amplitude produce a resultant wave of same ampl...

    Text Solution

    |

  2. A whistle giving out 450 Hz approaches a stationary observer at a spee...

    Text Solution

    |

  3. A source of sound of frequency 500 Hz is moving towards an observer wi...

    Text Solution

    |

  4. A stationary sound wave has a frequency 165 Hz.Distance between two co...

    Text Solution

    |

  5. The equation of a stationary wave is y=10 sin((pix)/4)cos20pit.Distanc...

    Text Solution

    |

  6. The length of a string tied to supports is 40 cm.Maximum wave length o...

    Text Solution

    |

  7. The tension and diameter of a sonometer wire of fundamental frequency ...

    Text Solution

    |

  8. The cylindrical tube open at both ends has fundamental frequency f in ...

    Text Solution

    |

  9. A progressive wave is represented by

    Text Solution

    |

  10. A sine wave travelling to right is represented by the equation y=asin(...

    Text Solution

    |

  11. A transverse wave is represented by the equation y=y0sin2pi(vt-x/lambd...

    Text Solution

    |

  12. Which of the following remains unchanged,when the wave propagates from...

    Text Solution

    |

  13. The equation of a wave is y = 20 sin(100pit-0.08pix)cm.The frequency o...

    Text Solution

    |

  14. The equation of a wave is y = 3 cospi(100t-x) cm.its wavelength is

    Text Solution

    |

  15. In a sonometer, the waves produced are

    Text Solution

    |

  16. If the tension of the wire is increased four times and its length redu...

    Text Solution

    |

  17. A string when attached by a weight of 4 Kg weight give a note of frequ...

    Text Solution

    |

  18. A closed organ pipe and a open organ pipe have their first overtone id...

    Text Solution

    |

  19. The velocity of sound in air is 332 m/s.The frequency of the fundament...

    Text Solution

    |

  20. Transverse wave of the same frequency are generated in two steel wires...

    Text Solution

    |