Sinusoidal Waves Travel on Five Identical Strings

Multiple Choice

Sinusoidal waves travel on five identical strings.Four of the strings have the same tension, but the fifth has a different tension.Use the mathematical forms of the waves, gives below, to identify the string with the different tension.In the expressions given below x and y are in centimeters and t is in seconds.

A) y(x,t) = (2 cm) sin (2x - 4t)
B) y(x,t) = (2 cm) sin (4x - 10t)
C) y(x,t) = (2 cm) sin (6x - 12t)
D) y(x,t) = (2 cm) sin (8x - 16t)
E) y(x,t) = (2 cm) sin (10x - 20t)