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    Physics
    Grade-9
    Easy

    Question

    In the given figure, the amplitude of oscillations is:

    1. L
    2. AB
    3. 2θ
    4. θ

    Hint:

    The amplitude is the maximum displacement of the bob from its equilibrium position.

    The correct answer is: θ

      The amplitude is the maximum displacement of the bob from its equilibrium position. When the pendulum is at rest, not swinging, it hangs straight down.
      So amplitude is L cos theta

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