Home
Class 11
PHYSICS
Two boys stand close to a long straight ...

Two boys stand close to a long straight metal pipe, at some distance from each other. One boy fires a gun and the other hears two explosions with a time interval of 1 s between them. If the velocity of sound in metal is `3630 m//s` and in air is `330 m//s` , then the distance between the two boys is

A

36.3 m

B

363 m

C

72.6 m

D

726 m

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise EXERCISE|147 Videos

  • Thermal Properties of Matter

    TARGET PUBLICATION|Exercise Exercise|259 Videos

Similar Questions

Explore conceptually related problems

A sources of sound is at one end of hallow tube. An observer at other end hears two distinct notes aftea time interval of 1s.If velocity of sound in air is 340 m/s and in metal is 3740 m/s , then lengths of pipe is

Two boys are sitting very close to each other at a distance of 0.5 m from each other.If the mass of one boy is 40 kg and other is 50 kg,find the fravitational force between them.

A man standing between two parallel cliffsfires a gun and hearstwo echoes of the report, one after 1 s and the other after 4 s. What is the distance between the cliffs if the velocity of sound is 340 m//s .

A man standing between two cliffs claps his hands and starts hearing series of echoes at interval of one second. Since the speed of sound in air is 340 m//s , the distance between cliffs must be

A person standing near a hill fires a gun and hears the echo after 1 second. If speed of sound in air is 340 m//s . Find the distance between the hill and the person.

A man standing unsymmetrical position between two mountains and fires a gun. He hears the first echo after 1.5 s and the second echo after 2.5 s. If the speed of sound in air is 340 m/s , then the distance between the mountains will be

Sunil is standing between two walls. The wall closest to him is at a distance of 660 m. If he shouts, he hear the first echo after 4 s and another after another 2 seconds. What is the velocity of sound in air?

A person standing between two hills fired a gun heard the first echo after 0.6s and the second echo after 1s. Find the distance between the two hills. (speed of sound in air =340m//s )

Find the frequency of minimum distance between compression and rarefaction of a wire. If the length of the wire is lm and velocity of sound in air is 360 m//s

A man is standing between two parallel cliffs and fires a gun. If he hears first and second echoes after 1.2 s and 3.6 s respectively, the distance between the cliffs is (velocity of sound in air = 340 m s^(-1) )

TARGET PUBLICATION-Sound-Exercise
  1. A car is moving with a speed of 72 km-hour^(-1) towards a roadside sou...

    Text Solution

    |

  2. The velocity of sound is greatest in

    Text Solution

    |

  3. A heavy ball of mass M is suspended from the ceiling of a car by a lig...

    Text Solution

    |

  4. The transverse displacement of a string clamped at both ends is by y (...

    Text Solution

    |

  5. Two boys stand close to a long straight metal pipe, at some distance f...

    Text Solution

    |

  6. A uniform rope of length L and mass m1 hangs vertically from a rigid s...

    Text Solution

    |

  7. A granite rod of 60 cm length is clamped at its middle point and is se...

    Text Solution

    |

  8. At a temperature of 314 K and a pressure of 100 kPa, the speed of soun...

    Text Solution

    |

  9. The extension in a string, obeying Hooke’s law, is x. The speed of the...

    Text Solution

    |

  10. When sound is produced in an aeroplane moving with a velocity of 250 m...

    Text Solution

    |

  11. Neon is 20 times heavier than hydrogen. The equal volumes of hydrogen ...

    Text Solution

    |

  12. Sound waves in air are always longitudinal, because

    Text Solution

    |

  13. Which of the following doesn’t produce a sound wave?

    Text Solution

    |

  14. The ratio of velocity of sound in hydrogen and chlorine at STP is

    Text Solution

    |

  15. Assertion: For sound waves, air is rarer medium than water. Reason: ...

    Text Solution

    |

  16. Which of the following statements is true for wave motion ?

    Text Solution

    |

  17. The ratio of the speed of sound in nitrogen gas to that in helium gas,...

    Text Solution

    |

  18. A source of sound of frequency 750 Hz is placed inside water. The spee...

    Text Solution

    |

  19. An observer standing near the seashore observes 42 waves per minute. I...

    Text Solution

    |

  20. Under similar conditions of temperature and pressure, in which of the ...

    Text Solution

    |