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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)`
    • RESONANCE-SOUND WAVES-Exercise- 2 PART - II
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    10. The two pipes are submerged in sea water, arranged as shown in figure....

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    11. Two narrow cylindrical pipes A and B have the same length. Pipe A is o...

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    13. In the experiment for the determination of the speed of sound in air u...

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    14. When a tuning fork vibrates with 1.0 m or 1.05 m long wire of a , 5 be...

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    15. A tuning moving towards a tunnel in a huge mountain with a speed of 12...

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    16. S is source R us reciver. R and S are at rest. F Frequency of sound fr...

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