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the velocity of sound in air would become double then it's velocity at 20 degree Celsius at
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Ans.49:- velocity of resultant wave will be equal to any one if the initial waves...
of*
velocity of any one of the initial waves *
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The speed of sound through air is approximately 343 m/s at normal room temperature, which is at 20 °c. The speed of sound through air is 346 m/s at 25 °C.
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solution of 49th question is in the pic
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