The wavelength of two sound waves are 49 cm and 50 cm respectively. If the room temperature is `30^@C` then the number of beats produced by them is approximately (velocity of sound in air `0^@C=332m//s`A. 6B. 10C. 14D. 18

The wavelength of two sound waves are 49 cm and 50 cm respectively. If

1.	The wavelength of two sound waves are 49 cm and 50 cm respectively. If the room temperature is `30^@C` then the number of beats produced by them is approximately (velocity of sound in air `0^@C=332m//s`A. 6B. 10C. 14D. 18
Answer» Correct Answer - C `y=332sqrt((303)/(273))` Beat frequency `=f_1-f_2=v((1)/(lamda_1)-(1)/(lamda_2))` `=332sqrt((303)/(273))((1)/(49)-(1)/(50))xx100cong14`

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The wavelength of two sound waves are 49 cm and 50 cm respectively. If the room temperature is `30^@C` then the number of beats produced by them is approximately (velocity of sound in air `0^@C=332m//s`A. 6B. 10C. 14D. 18

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