Two waves of length 50 cm and 51 cm produced 12 beas per second. The velocity of sound is :

Two waves of length 50 cm and 51 cm produced 12 beas per second. The v

1.	Two waves of length 50 cm and 51 cm produced 12 beas per second. The velocity of sound is :
Answer» 331 m/s 360 m/s 340 m/s 306 m/s Solution :NUMBER of beats PRODUCED per second. `=v_(1)-v_(2)=(v)/(lambda_(1))-(v)/(lambda_(2))` `:.12=v((1)/(50)-(1)/(51))` (or) `v=12xx50xx51 cm//s` `=3060 cm//s= 306 m//s`