The coefficient of volumetric expansion of mercury is `18xx10^(-5)//^(@)C` . A thermometer bulb has a volume `10^(-6)m^(3)` and

The coefficient of volumetric expansion of mercury is `18xx10^(-5)//^(@)C` . A thermometer bulb has a volume `10^(-6)m^(3)` and cross section of stem is `0.004 cm^(2)`. Assuming that bulb is filled with mercury at `0^(@)C` then the length of the mercury column at `100^(@)C` is
A. `18.8 mm`
B. `9.2 mm`
C. `7.4 mm`
D. `4.5 cm`

The coefficient of volumetric expansion of mercury is `18xx10^(-5)//^(@)C` . A thermometer bulb has a volume `10^(-6)m^(3)` and cross section of stem

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