Question

Which of the following quantities provide enough information to calculate the tension in a string of mass per unit length μ that vibrates with a frequency f?A. the wave speed v and ?
B. the wavelength ? and f
C. the wave speed v and f
D. the wavelength ? and ?

Answer 1

Answer:

A. the wave speed v and Wavelength

Explanation:

Given that

Mass density per unit length=μ

Frequency = f

The velocity V given as

$\mu=\dfrac{T}{V^2}\ kg/m$

$V=\sqrt{\dfrac{T}{\mu}}$

T=Tension

V=Velocity

V= f λ

λ=Wavelength

Therefore to find the tension ,only wavelength and speed is required.

The answer is A.