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Q.

Is it true that the heating of the blade leads to its expansion and thus the ring gets bigger, this happens because metals always expand on heating?


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a

True

b

False

answer is A.

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Detailed Solution

The above statement is True.
Heating causes the blade to expand, causing the ring to grow larger. This occurs because metals always expand when heated. The metal blade is then easily inserted into the wooden handle. After that, cold water is usually poured on the iron blade, causing the expanded iron blade to contract.
 
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