MDCAT Physics MCQ #3983

A wave is traveling through a string with a speed of 20 m/s. If the tension in the string is 100 N, what is the mass per unit length?

MDCAT Physics MCQ #3983

  1. Question 1

    Q1. A wave is traveling through a string with a speed of 20 m/s. If the tension in the string is 100 N, what is the mass per unit length?

    • A) 0.1 kg/m
    • B) 0.25 kg/m
    • C) 0.5 kg/m
    • D) 1.0 kg/m

    Answer: 0.25 kg/m

    Explanation: Speed = sqrt(tension / mass per unit length). So, mass per unit length = tension / speed^2 = 100 N / (20 m/s)^2 = 0.25 kg/m. Option A is incorrect due to miscalculation.