Two wave trains travel on a string under a constant tension T.Which of the following statements is NOT correct?
A)The two waves can have different speed.
B)The two waves can have different frequency.
C)The two waves can have different wavelength.
D)The superposition principle applies for the two waves.
E)At any point on the string,the resultant amplitude is the algebraic sum of the amplitudes of the two waves.

Question

Quizplus · Accepted Answer

The speed of a wave on a string under constant tension is determined by the properties of the string (its tension and mass per unit length) and does not depend on the properties of the wave (like frequency or wavelength). Therefore, if the tension in the string is constant, two waves on the string must travel at the same speed.

Two Wave Trains Travel on a String Under a Constant