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Explain (i) Undamped and damped oscill...

Explain
(i) Undamped and damped oscillations and
(ii) free, forced and resonant oscillations with illustrations.

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### Step-by-Step Solution #### Part (i): Undamped and Damped Oscillations 1. **Definition of Undamped Oscillations**: - Undamped oscillations are oscillations where the amplitude remains constant over time. This means that the energy of the system is conserved, and there are no external forces acting to dissipate energy (like friction or air resistance). - **Illustration**: A mass attached to a spring that is oscillating in a vacuum (where there is no air resistance) is an example of undamped oscillation. The mass will continue to oscillate indefinitely with the same amplitude. ...
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Knowledge Check

  • At resonance, the amplitude of forced oscillations is

    A
    minimum
    B
    maximum
    C
    zero
    D
    none of these

  • In case of force oscillations of a body

    A
    driving force is constant throughout.
    B
    driving force is to be applied only momentarily
    C
    driving force has to be periodic and continuous
    D
    driving force is not required.

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