1.

What tension should be there in a string of length 0.8m and of mass `5xx10^(-3) kg`, if it vibrates with fundamental frequency of 100 Hz?A. 100NB. 160NC. 140ND. 120N

Answer» Correct Answer - B
`n=(1)/(2l) sqrt(T/m) therefore n^2 = (1)/(4l^2) T/m`
`therefore T= 4n^2l^2m`
`=(4xx10^(4)xx0.6xx5xx10^(-3))/(0.8) = 160N`


Discussion

No Comment Found

Related InterviewSolutions