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physics

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1.)A radio station transmits waves of length 400m.if the speed of the waves is 3*10power8m/sec,find the frequency of the radio station.

2.)Audible range of frequencies is between 20Hz and 20KHz.Find the range of the wavelengths corresponding to these frequencies.given,velocity of sound=300m/sec

  • physics - ,

    Use the appropriate formulas.
    1. f = (wave speed)/(wavelength)
    = 3*10^8/400 = ___ Hz

    2. Longer audible wavelength
    = (300 m/s)/(lower frequency)
    = ___ m

    Shorter audible wavelength
    = (300 m/s)/(maximum frequency)
    = ___ m

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