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The temperature of air in a 900m long tu...

The temperature of air in a `900m` long tunnel varies linearly form `100 K` at one end to `900 K` at other end. If the speed of sound in air at `400 K` is `360 m//s` then time taken by sound to cross the tunnel is `K` second. Find `2K` ?

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Knowledge Check

  • two pipes have each of length 2 m, one is closed at on end and the other is open at both ends. The speed of sound in air is 340 m/s . The frequency at which both can resonate is ?

    A
    340 Hz
    B
    510 Hz
    C
    42.5 Hz
    D
    none of these

  • The length of a pipe closed at one end is 33 cm and the speed of sound in air is 330 m/s. What is the frequency of the third overtone produced by the pipe ?

    A
    `1500`Hz
    B
    `2000` Hz
    C
    `1750` Hz
    D
    `2500` Hz

  • The pressure of air increases by 100mm of Hg and the temperature decreases by 1^(@)C . The change in the speed of sound in air at STP is (V_(0)=333m//s)

    A
    `61ms^(-1)`
    B
    `61mms^(-1)`
    C
    `61cms^(-1)`
    D
    `0.61cms^(-1)`

    • Similar Questions

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    A source of sound is placed at one end of an iron bar 2 km long. Two sounds are heard at the other end at an interval of 5.6s. If the velocity of sound in air is 330m//s , find the velocity of sound in iron.

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