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Question
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Periodic and non-periodic change
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Solution
| Periodic change | Non-periodic change |
| (i) Changes which occur periodically (occur again and again) at regular intervals of time. | (i) Changes which do not occur periodically (do not repeat) at regular intervals of time. |
| (ii) Examples of a periodic change: Change of seasons, the occurrence of day and night, movement of a clock pendulum. |
(ii) Examples of a non-periodic change: Change of weather, growth of a plant, cyclones, earth-quakes, rusting of iron, thunder, and lightning. |
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