engineering physics MCQ #4583

The time period of a mass suspended from a spring is T. If the spring is cut into four equal parts and the same mass is suspended from one of the parts, its new time period is

engineering physics MCQ #4583

  1. Question 1

    Q1. The time period of a mass suspended from a spring is T. If the spring is cut into four equal parts and the same mass is suspended from one of the parts, its new time period is

    • A) T / 2
    • B) T / 4
    • C) 2 T
    • D) 4 T

    Answer: T / 2

    Explanation: T ∝ 1 / √k. When spring is cut into 4 parts, k becomes 4 times, so T becomes 1 / 2.