A metal wire of diameter 1 mm is held on two knifeedges separated by a distance of 50 cm.The tension in the wire is 100 N . The wire, vibrationwith itfundamental frequency together with a vibrating tuning fork, produces 5 beats per second . The tension in the wire is then reduced to 81 N .Now , when the two are excited, beats are heard again atthe same rate . Calculate (i) the frequency of the tuning fork, (ii) the density of the meterial of the wire .

A metal wire of diameter 1 mm is held on two knifeedges separated by a

1.	A metal wire of diameter 1 mm is held on two knifeedges separated by a distance of 50 cm.The tension in the wire is 100 N . The wire, vibrationwith itfundamental frequency together with a vibrating tuning fork, produces 5 beats per second . The tension in the wire is then reduced to 81 N .Now , when the two are excited, beats are heard again atthe same rate . Calculate (i) the frequency of the tuning fork, (ii) the density of the meterial of the wire .
Answer» ANSWER :(i)95 HZ ;, (ii) 12 . 73 ` g* cm^(-3)`