A string 25 cm long and having a mass of 2.5 g is under tension. When the string is set vibrating in its first overtone and the air in the pipe in its fundamental frequency , 8 beats per second are heard. It is observed that decreasingin the string, decreases the beat frequency . If the velocity of sound in air be 320 m*s^(-1)find the tension in the string .

A string 25 cm long and having a mass of 2.5 g is under tension. When

1.	A string 25 cm long and having a mass of 2.5 g is under tension. When the string is set vibrating in its first overtone and the air in the pipe in its fundamental frequency , 8 beats per second are heard. It is observed that decreasingin the string, decreases the beat frequency . If the velocity of sound in air be 320 m*s^(-1)find the tension in the string .
Answer» ANSWER :27 N