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Question

A person goes to bed at sharp 10.00 pm every day. Is it an example of periodic motion?


A

True

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B

False

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Solution

The correct option is B

False


Here, the person is going to bed sharp at 10:00.

But what about his motion, if we take his bed as the reference he might take different paths every day. Someday he might follow.

(1) Bed - Bathroom - Bus stop - Office - Bus stop - Bed

(2) Bed - Bathroom - Cab - Office - Restaurant - Bed

So every day the path might be different, even if the path is same the velocity might be different (at the same time on different days)

Example: He might go to his office every day but the speed of a bike and a car and a bus will be different.

Clearly, the motion is not periodic.


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