Home
Class 12
PHYSICS
A source of sound of frequency 300 Hz an...

A source of sound of frequency 300 Hz and a receiver are located along the same line normal to the wall as shown in the figure. Both the source and the receiver are stationary and the wall receeds from the source with velocity `20ms^-1`.If the beat frequency registered by the receiver is `240/x` Hz then x is :
(Assume `V_("sound")=300` m/s).

Text Solution

Verified by Experts

The correct Answer is:
7
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 29

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

  • NTA JEE MOCK TEST 31

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A source of sonic oscillations with frequency and a receiver are located on the same normal to the wall. Both the source and the receiver are stationary and the wall recedes from source with velocity u. Find the beat frequency registered by the receiver. The velocity of sound is equal to v.

A source of sonic oscillations of frequency n_(0) = 2000 Hz and a receiver are located on the same normal to a wall. Both the source and the receiver are stationary and the wall recedes from the source with a velocity u = 10 cm//s . Find the beat frequency registered by the receiver. The velocity of sound is v = 340 m//s

A source of sonic oscillations with frequency n=1700Hz and a receiver are located on the same normal to a wall. Both the source and receiver are stationary, and the wall recedes from the source with velocity u=6.0(m)/(s) . Find the beat frequency registered by the receiver. The velocity of sound is v=340(m)/(s) .

A source of sonic oscillations of frequency n_(0) = 2000 Hz and a receiver are located at the same point. At the instant t = 0 the source starts receding form the receiver with constant acceleration a = 10 m s^(-2) . Find the frequency registered by the reciver at the instant t = 10 s . Velocity of sound, v = 340 m//s

A source of sonic oscillations with frequency v_(0)=1700Hz and a receiver are located at the same point. At the moment t=0 the source starts receding from the receiver with constant acceleration w=10.0m//s^(2) . Assuing the velocity of sound to be equal to v=340 m//s , find the oscillation frequency registered by the stationary receiver t=10.0s after the start of motion.

A source of sound with frequency 256 Hz is moving with a velocity V towards a wall and an observer is stationary detween the source and the wall. When the observer is between the source and the wall he will hear beats.

A stationary sound sound 's' of frequency 334 Hz and a stationary ovserver 'O' are placed near a reflecting suface moving away from the source with velocity 2 m/s as shown in the figure. If the velocity of the sound waves is air is v= 330 m/s the apparent frequency of the echo is

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

A source of sound and a listener both are moving in the same direction,the source following the listener. If the respective velocities of sound ,source and listener are v, v_s and v_'//s then the ratio of the actual frequency of the source and the apparent frequency as received by the listener is

NTA MOCK TESTS-NTA JEE MOCK TEST 30-PHYSICS
  1. The part of a circuit shown in the figure consists of two ideal diodes...

    Text Solution

    |

  2. A disc of mass 2 kg and radius 0.2 m is rotating with angular veocity ...

    Text Solution

    |

  3. A bottle has an opening of radius a and length b. A cork of length b a...

    Text Solution

    |

  4. Lights of wavelenths lambda(1)=340nm and lambda(2)=540nm are incident ...

    Text Solution

    |

  5. A block of mass m is attached to a cart of mass 4m through spring of s...

    Text Solution

    |

  6. A current - carrying loop is shown in the figure. The magnitude of the...

    Text Solution

    |

  7. Weight fo a body of a mass m decreases by 1% when it is raised to heig...

    Text Solution

    |

  8. A ring of charge with radius 0.5m has 0.002 pi m gap. If the ring carr...

    Text Solution

    |

  9. A positive point charge is placed at P in front of an earthed metal sh...

    Text Solution

    |

  10. A square coil of side 25cm having 1000 turns is rotated with a uniform...

    Text Solution

    |

  11. The three resistance of equal value are arranged in the different comb...

    Text Solution

    |

  12. In the circuit shown, current (in A) through the 50 V and 30 V batteri...

    Text Solution

    |

  13. At a place the true value of angle of dip is 60^(@). If dip circle is ...

    Text Solution

    |

  14. Two bodies of same mass tied with an inelastic string of length l lie ...

    Text Solution

    |

  15. Steam at 100^@C is passed into 1.1 kg of water contained in a calorime...

    Text Solution

    |

  16. A hydrogen like atom (atomic number z) is in a higher excited state of...

    Text Solution

    |

  17. A source of sound of frequency 300 Hz and a receiver are located along...

    Text Solution

    |

  18. Diameter or aperture of a plano - convex lens is 6 cm and its thicknes...

    Text Solution

    |

  19. A vessel whose bottom has round holes with diameter of 1 mm is filled...

    Text Solution

    |

  20. A solid spherical ball of radius (5)/(9)m is connected to a point A on...

    Text Solution

    |