A periodic transverse wave is established on a string such that there are exactly two cycles traveling along a 3.0-m section of the string. The crests move at 20.0 m/s.
-How could the speed of the wave be increased?
A)by increasing the period
B)by decreasing the amplitude
C)by decreasing the frequency
D)by increasing the tension in the string
E)by increasing amplitude

Question

Quizplus · Accepted Answer

The speed of a wave on a string is determined by the tension in the string and the mass per unit length of the string. Increasing the tension in the string will increase the speed of the wave, while decreasing the tension would decrease the speed. Choices A, B, and C do not affect the speed of the wave on the string. Choice E, increasing the amplitude, would increase the energy of the wave but would not affect its speed.

A Periodic Transverse Wave Is Established on a String Such