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The volume of mercury in the bulb of a t...

The volume of mercury in the bulb of a thermometrer is `10^(-6) m^(2)`. The area of cross- section of the capillary tube is `2xx10&(-7) m^(2)`. If the temperature is raised by `100^(@)C,` then the increase in the length of the mercury column `(gamma_(Hg)=18xx10^(-5)//"^(@)C)`

A

9 cm

B

9 mm

C

18 cm

D

5 cm

Text Solution

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The correct Answer is:
A
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