The tension in a taut rope is increased by a factor of 9. How does the speed of wave pulses on the rope change, if at all?
A)The speed remains the same.
B)The speed is reduced by a factor of 3.
C)The speed is reduced by a factor of 9.
D)The speed is increased by a factor of 3.
E)The speed is increased by a factor of 9.

Question

Quizplus · Accepted Answer

The speed of wave pulses on a rope is proportional to the square root of the tension. If the tension is increased by a factor of 9, the speed increases by the square root of 9, which is 3.

The Tension in a Taut Rope Is Increased by a Factor