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The bulb of one thermometer is spherical, while that of other is cylindrical. If both of them have an equal amount of mercury, which one will respond quickly to the temperature?

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+1 vote
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in Engineering Physics I by (558k points)
The bulb of one thermometer is spherical, while that of other is cylindrical. If both of them have an equal amount of mercury, which one will respond quickly to the temperature?

(a) Spherical

(b) Cylindrical

(c) Elliptical

(d) Circle

This question was addressed to me by my school teacher while I was bunking the class.

This intriguing question originated from Temperature and Specific Heat in division Mechanical Properties of Solids of Engineering Physics I

1 Answer

+1 vote
by (1.4m points)
Right option is (b) Cylindrical

For explanation: As the square area of a cylindrical bulb is larger than a spherical bulb, heat will be transmitted quickly through a cylindrical bulb and it will respond quickly to the temperature.

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