Question

A source vibrating at constant frequency generates a sinusoidal wave on a string under constant tension. If the power delivered to the string is doubled, by what factor does the amplitude change?

a. a factor of 4
b. a factor of 2
c. a factor of √2
d. a factor of 0.707
e. cannot be predicted

Answer 1

A source vibrating at constant frequency generates a sinusoidal wave on a string under constant tension. If the power delivered to the string is doubled, the amplitude changed by b. a factor of 2.