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JEE Main & Advanced Physics Wave Mechanics Question Bank Numerical Value Type Questions - Oscillations

  • question_answer
    The displacement of a damped harmonic oscillator is given by \[x(t)={{e}^{-0.1t}}.\cos (10\pi t+\phi )\] Here t is in seconds. The time (in second) taken for its amplitude of vibration to drop to half of its initial value is

    Answer:

    7


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