A student attaches a length of nylon fishing line to a fence post. She stretches it out and shakes the end of the rope in her hand back and forth to produce waves on the line. The most efficient way for her to increase the wavelength is to
A) increase the tension on the hose and shake the end more times per second.
B) decrease the tension on the hose and shake the end more times per second.
C) increase the tension on the hose and shake the end fewer times per second.
D) decrease the tension on the hose and shake the end fewer times per second.
E) keep the tension and frequency the same but increase the length of the hose.

Question

Quizplus · Accepted Answer

Increasing the tension on the line increases the wave speed, and shaking the end fewer times per second (decreasing frequency) increases the wavelength, as wavelength is directly proportional to wave speed and inversely proportional to frequency.

A Student Attaches a Length of Nylon Fishing Line to a Fence