In the figure,which of the curves best represents the variation of wave speed as a function of tension for transverse waves on a stretched string?
A) A
B) B
C) C
D) D
E) E

Question

In the figure,which of the curves best represents the variation of wave speed as a function of tension for transverse waves on a stretched string? 
A) A 
B) B 
C) C 
D) D 
E) E

Quizplus · Accepted Answer

According to the wave speed equation for transverse waves on a stretched string, v = sqrt(T/μ), where T is the tension in the string and μ is the linear mass density (mass per unit length). As tension increases, wave speed should also increase, but at a decreasing rate because μ is usually assumed to be constant. Curve B matches this relationship, with wave speed increasing as tension increases but at a decreasing rate. The other curves either show no relationship or an inverse relationship between wave speed and tension, which is not consistent with the wave speed equation for transverse waves on a stretched string.

In the Figure,which of the Curves Best Represents the Variation