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The Coefficient of cubical expansion of ...

The Coefficient of cubical expansion of mercury is `0.0018//^(@)C` and that of brass `0.000006//^(@)C`, find the true barmetric height at `0^(@)C`.The scale is supposed to be coreect at `15^(@)C`

A

74.122 cm

B

79.125 cm

C

42.161cm

D

142.39 cm

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A
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