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A long glass tube of uniform capillary b...

A long glass tube of uniform capillary bore contains a thread of mercury which at 0°C is 1m long at `100^(@) C`. It is 15.5 mm longer. If the coefficient of real expansion of mercury is `1.82 xx 10^(-4)` per `""^(@) C`, what is coefficient of expansion of glass? (in `10^(-6)//""^(@) C` )

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