Question

'Pulling of a rubber string is a reversible change'. Explain.
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Answer 1

Answer:

When u release a stretched rubber band it regains its original dimensions.

Since there is no observable change in the physical properties associated with the rubber band you can call it a physical change.

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Answer 2

Answer:

• When we strech a rubber with our hands, its length increases.

• But, on releasing the force, rubber comes back to it's original length.

• So, the streching of rubber is a reversible change.

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