Find the frequency of note emitted by a string of length 10sqrt(10)cm, under tension of 3.14kg.Radius of string is 0.5 mm and density =9.8g//cc.

Find the frequency of note emitted by a string of length 10sqrt(10)cm,

1.	Find the frequency of note emitted by a string of length 10sqrt(10)cm, under tension of 3.14kg.Radius of string is 0.5 mm and density =9.8g//cc.
Answer» Solution :Here, `l=10sqrt(10)cm=0.1m,` `T=3.14kg=3.14xx9.8N` `D=2r=2xx0.5mm=1mm=0.001m,` `rho=9.8g//c c=9.8xx10^(3)kg//m^(3)` As, `v=(1)/(LD)sqrt((T)/(pirho))` `:.v=(1)/(0.1sqrt(10)xx0.001)xxsqrt((3.14xx9.8)/(3.14xx9.8xxx10^(3)))`