An iron tyre is to be fitted on to a wooden wheel 1m in diameter. The� – McqOptions

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1.	An iron tyre is to be fitted on to a wooden wheel 1m in diameter. The diameter of tyre is 6 mm smaller than that of wheel. The tyre should be heated so that its temperature increases by a minimum of (the coefficient of cubical expansion of iron is 3.6 × 10?5/ºC) [CPMT 1989]
A.	167ºC
B.	334ºC
C.	500ºC
D.	1000ºC
Answer» D. 1000ºC

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