The thermal expansion of a solid is an advantage in

The thermal expansion of a solid is an advantage in
A. Balance wheel of a watch
B. Construction of steel rail lines
C. Construction of large steel bridges
D. Fitting of tyres on wheels

Correct Option: Answer is A
Thermal expansion of a solid is majorly advantageous in the use of bimetallic strip in the balance of a watch so as not to lose time

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