Home
Class 12
PHYSICS
Beats are produced by two waves y(1)=asi...

Beats are produced by two waves `y_(1)=asin2000pit`, and `y^(2)=asin2008pit`.
The number of beats heard per second is :

A

Zero

B

One

C

Four

D

Eight.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • UNIT TEST PAPER NO.2

    MODERN PUBLICATION|Exercise MCQ|25 Videos

  • UNITS, MEASURMENTS, DIMENSIONS, ERRORS OF MEASUREMENTS

    MODERN PUBLICATION|Exercise Recent Competitive Questions|7 Videos

Similar Questions

Explore conceptually related problems

Two simple harmonic motions are represented by y_(1)=5[sin2pit+sqrt(3)cos2pit] and y_(2)=5sin(2pit+(pi)/(4)) The ratio of their amplitudes is

A person with vibrating tuning fork of frequency 338Hz is moving towards a vertical wall with a speed of 2 ms^(-1) . Velocity of sound in air is 340 ms^(-1) . The number of beats heard by that person per second is

A bus is moving with a velocity of 5 ms^(-1) towards a huge wall. The drive sounds a horn of frequency 165Hz. If the speed of sound in air is 335 m//s, the number of beats heard per second by a passenger on the bus will be

MODERN PUBLICATION-UNIT TEST PAPER NO.4-MCQ
  1. The difference between the apparent frequency of a source of sound as ...

    Text Solution

    |

  2. An electric refrigerator abstracts 2000 calories from ice trays. The c...

    Text Solution

    |

  3. A car travelling at 10" ms"^(-1) sounds a horn, which has a frequency ...

    Text Solution

    |

  4. Two samples A and B of a gas are initially at the same temperature and...

    Text Solution

    |

  5. At 16^(@)C two open organ pipes when wounded together produce 51 beats...

    Text Solution

    |

  6. If the temperature of a black body is increased by 50% then the amount...

    Text Solution

    |

  7. Beats are produced by two waves y(1)=asin2000pit, and y^(2)=asin2008pi...

    Text Solution

    |

  8. A body cools from 60^(@)C to 50^(@)C in 10 minutes, when kept in air a...

    Text Solution

    |

  9. The temperature of hot and cold end of a 20 cm long rod in steady stat...

    Text Solution

    |

  10. Four indentical rods of same material are joined end to end to from a ...

    Text Solution

    |

  11. A uniform rope of length 12 metres and mass 6 kg hangs vertically from...

    Text Solution

    |

  12. A sphere of radius r, density d and specific heat S is heated to tempe...

    Text Solution

    |

  13. The correct curve showing maximum emissive power E(m) and absolute tem...

    Text Solution

    |

  14. In an adiabatic process wherein pressure is increased by 2/3%. If (C(p...

    Text Solution

    |

  15. The (W/Q) of a Carnot - engine is 1//6. Now thw temperature of sink is...

    Text Solution

    |

  16. A gas (gamma=1.5) is taken through adiabatic process in which volume i...

    Text Solution

    |

  17. Two identical rods of copper and iron are coated with wax uniformly. W...

    Text Solution

    |

  18. The motion of a particle executing simple harmonic motion is given by ...

    Text Solution

    |

  19. When the temperature of an ideal gas is increased by 600 K, the veloci...

    Text Solution

    |

  20. In Ingen Hauze's experiment, the wax melts up to lengths 10 and 25 cm ...

    Text Solution

    |