Which of the following examples represent periodic motion?

1. A swimmer completing one (return) trip from one bank of a river to the other and back.
2. A freely suspended bar magnet displaced from its N-S direction and released.
3. Swaying of the branches of the tree.
4. An arrow released from a bow.

Subtopic:  Types of Motion |
 52%
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The figure depicts four \((\mathrm{x-t})\) plots for the linear motion of a particle.

(a)
 
(b)  
(c)   
(d)   

Which of the following is true​​​​​​?

1. (a) is periodic but (c) is not periodic.
2. (b) is periodic but (d) is not periodic.
3. (b) and (d) are periodic.
4. only (c) is periodic.
Subtopic:  Types of Motion |
 81%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh