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प्रश्न
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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उत्तर
| 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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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Classify the following as chemical or physical change:
Boiling of water to form steam.
Classify the following as chemical or physical change:
Making a fruit salad with raw fruits
Choose the most appropriate answer.
Rising and setting of the sun at a given place is a
Write true or false for the statement.
Deforestation is a man-made change
Write short answer.
Sublimation is classified as a physical change. Why ?
State whether the following is physical or chemical changes.
burning of sugar —
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Give a reason why rusting of iron is a chemical change but, the magnetization of iron is a physical change.
Select the chemical changes from the following list of changes
Rotting of eggs.
