Home
Class 11
PHYSICS
When sound is produced in an aeroplane m...

When sound is produced in an aeroplane moving with a velocity of `250 m//s` horizontally its echo is heard after 12 seconds. If velocity of sound in air is `300 m s^(-1)`, the elevation of aircraft is

A

995 m

B

758 m

C

1250 m

D

2500 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

The velocity of light in air is _____ m/s

At NTP, velocity of sound in air at 0^@C by Newton’s formula is

An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60 ms^(-1) owards a hill from which an echo is heard. The frequency of the echo heard by the driver (Velocity of sound in air=340 ms^(-1) )

An open organ pipe of length is 50 cm, If the velocity of sound in air is 320 m/s , then the frequency of its fundamental note will be

If the length of a closed organ pipe is 1m and velocity of sound is 330 m/s , then the frequency for the second note is

A tuning fork makes 256 vibrations per second in air. When velocity of sound is 330 m//s , then wavelength of the tone emitted is

An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60(m)/(s) towards a wall from which an echo is heard. Calculate the frequency of the echo heard by the driver. (velocity of sound in air in 340(m)/(s) .)

If the lengths of a closed rogan pipe is 1.5m and velocity of sound is 330m/s, then the frequency for the second note is

The frequency of a whistle of the engine of an express train moving with 20 m/s appears as 500 Hz to a car driver moving with the velocity 15 m/s. The velocity of the sound in air is 335 m/s. If the train and car are moving in opposite directions towards each other, then the frequency of the whistle is

A body moves with a uniform acceleration of 0.5 m//s^(2) . If its initial velocity is 20 m//s , find its velocity after 6 seconds.

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

    |