engineering physics MCQ #4571

A simple pendulum has a time period of 2 s. If its length is increased by 4 times, its new time period is

engineering physics MCQ #4571

  1. Question 1

    Q1. A simple pendulum has a time period of 2 s. If its length is increased by 4 times, its new time period is

    • A) 4 s
    • B) 2 s
    • C) 8 s
    • D) 1 s

    Answer: 4 s

    Explanation: Time period of simple pendulum, T = 2 π √(l / g). When l is increased 4 times, T becomes 2 times, so new T = 2 * 2 = 4 s.