Assertion :If a rectangular plate with a hole in it is heated. the radius of the hole increases. Reason: When any body is heated, the average intermolecular separation increases due to which the distance between any two points of a solid increases.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Since expansion occurs radially outwards therefore, assertion is true.
Now , on expansion intermolecular distance is increased therefore, for more separation expansion occurs radially outwards
Reason is correct explanation.
Hence, option (A).

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