Answers

2014-03-27T22:13:28+05:30
Given frequency = 91.1 Hz
                     c = 3 X 10³ ( speed of wave )
c = frequency X wavelength
  so wavelength = c / frequency
                           = ( 3 X 10³ ) / 91.1
                           =32.967 m
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2014-03-27T22:16:47+05:30
Given frequency =91.1 Hz
velocity of wave c=3 x 10³
we know that 
wavelenght= c/frequency
                =3 x 10³/91.1
                =32.930 m ans...

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