In an experiment it was found that when a sonometer in its fundamental mode of vibration and a tunning fork gave 5 beats when length of wire is 1.05 metre or 1 metre. The velocity of transverse waves in sonometer wire when its length is 1m

In an experiment it was found that when a sonometer in its fundamental

1.	In an experiment it was found that when a sonometer in its fundamental mode of vibration and a tunning fork gave 5 beats when length of wire is 1.05 metre or 1 metre. The velocity of transverse waves in sonometer wire when its length is 1m
Answer» `400m//s` `210m//s` `420m//s` `450m//s` Solution : `n prop (1)/(l) IMPLIES(n_(1))/(n_(2))=(l_(2))/(l_(1))=(1)/(1.05)impliesn_(1)=(100)/(105)n_(2)` `impliesn_(2) gt n_(1)` Here FORK GIVES `5` beats/sec with each length and hence `n_(2) gt n gt n_(1)` `implies{:(n_(2)-n=5.....(1)),(ul(n-n_(1)=5).....(2)),(ul(n_(2)-n_(1)=10)):}`