14.3 Fig. 14.23 depicts four x-t plots for linear motion of a particle. Which of the plots represent periodic motion? What is the period of motion (in case of periodic motion)?

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(a) It is not a periodic motion. It represents a unidirectional, linear uniform motion. There is no repetition of motion

(b) In this case, the motion of the particle repeats itself after 2 s. Hence, it is a periodic motion, having a period of 2 s

(c) It is not a periodic motion. This is because t

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physics ncert solutions class 11th 2023

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