A student keeps the linear mass density of a string fixed and varies the tension
PHYSICS · Single correct · A Level · Physics · Waves · Waves
Problem
A student keeps the linear mass density of a string fixed and varies the tension, then plots the square of the measured wave speed v2 versus the applied tension FT. Which description best characterizes the resulting graph?
(a) A curve that rises with decreasing slope, like a square-root function
(b) A straight line that intersects the vertical axis above the origin
(c) A straight line passing through the origin
(d) A curve that opens upward like a parabola