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A cylindrical steel plug is inserted int...

A cylindrical steel plug is inserted into a circular hole of diameter 2.60 cm in a brass plate. When the plug and the plates are at a temperature of `20^(@)C,` the diameter of the plug is 0.010 cm cmaller than that of the hole. The temperature at which the plug will just fit in it is
`("Given",alpha_(steel)=(11xx10^(-6))/("^(@)C)and alpha_(bress)=(19xx10^(-6))/C)`

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