NEET UG PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

1 Medium

1 of 1

Application +4 | -1

The coefficient of volumetric expansion of mercury is

18 \times {10^{ - 5}}/{^0}C

. A thermometer bulb has a volume

{10^{ - 6}}{m^3}

and cross section of stem is

0.004c{m^2}

. Assuming that bulb is filled with mercury at

{0^0}C

then the length of the mercury column at

{100^0}C

View answer and explanation

Correct option: D

4.5cm

Option D (

4.5cm

) is correct because it is calculated using the volumetric expansion of mercury and the area of the stem.

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\left. {0.05{\text{W}}{{\text{m}}^{ - 1}}^\circ {{\text{C}}^{ - 1}}} \right)

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