23 Oct 2024

The coefficient of cubical expansion of mercury is 0.00018/C and that of brass 0.00006/C. If a barometer having a brass scale were to read 74.5 cm at 30C, Find the true barometer height at 0C. the Scale is supposed to be corrected at 15C.

The coefficient of cubical expansion of mercury is 0.00018/C and that of brass 0.00006/C. If a barometer having a brass scale were to read 74.5 cm at 30C, Find the true barometer height at 0C. the Scale is supposed to be corrected at 15C.

ANSWER : 74.122 cm

 

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