MCQ
Two pendulums with identical bobs and lengths are suspended from a common support such that in rest position the two bobs are in contact (figure). After being displaced by $5^o $ the bob $A$ is released from rest, at $t = 0$ subsequently it collides elastically head-on with the other bob.The graph showing variation in energy of pendulum $A$ with time, for $0 \leqslant t \leqslant T$ (where $T$ is the period of either pendulum).
  • A


  • C

  • D

Answer

Correct option: B.

b
Before collision bob $1$ , has energy after collision energy transfer to bob $2$ then again collision accure between $1$ & $2$ .

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