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Physics
The frequency of rod is 200 Hz . If the velocity of sound in air is 340 m/s-1 . Then the wavelength of the produced sound is
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Q. The frequency of rod is $ 200\,\,Hz $ . If the velocity of sound in air is $ 340\,\,m/s^{-1} $ . Then the wavelength of the produced sound is
Punjab PMET
Punjab PMET 1999
A
$ 6.8\,\,cm $
B
$ 1.7\,\,cm $
C
$ 6.8\,\,m $
D
$ 1.7\,\,m $
Solution:
Frequency $ f=200\,\,Hz $ Velocity of sound in air $ c=340\,\,m/s $ The wavelength $ \lambda =\frac{340}{200}=1.7\,\,m $