An iron blade has a ring in which the wooden handle is fixed. The ring is slightly smaller in size than a wooden handle. The ring is heated. Is it true that Heating of the blade leads to its expansion and thus the ring gets bigger?

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True

False

answer is A.

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Detailed Solution

The above statement is true.
The iron blade has a ring wherein the wooden handle is fixed. The ring is barely smaller in length than the handle. The ring is heated and it will become barely large in size (expands). The handle suits into the hoop. When the hoop cools it contracts and tightly suits at the handle. The heating of the blade ends in its growth and as a result the hoop receives bigger. This occurs due to the fact metals continually make bigger on heating. The metallic blade is then fitted without difficulty into the handle. This happens because metals always expand on heating.

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