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13. oscillations — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics13. oscillations1 Mark
MCQ
A pendulum suspended from the ceiling of a train oscillates with a time period $2\,second$, when the train is accelerating at $10\,ms^{-2}$. What will be its time period when the train retards at $10\,ms^{-2}$ ? ..... $\sec$
  • ✓
    $2$
  • B
    $2\sqrt 2$
  • C
    $\left( {2\sqrt 2 } \right)$
  • D
    None of the above
✓

Answer

Correct option: A.
$2$
a
Resultant acceleration remains unchanged so time period remains unchanged.

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