Question

(viii) How can you increase the sensitivity of a liquid-in-glass thermomete
a. use a liquid which conducts heat better
b. use a thin-walled bulb
c. use a longer bulb
d. use a liquid of very high boiling point
e use a tube, having a narrower bore.​

Answer 1

Answer:

The mercury-in-glass or mercury thermometer was invented by physicist Daniel Gabriel Fahrenheit in Amsterdam (1714).[1] It consists of a bulb containing mercury attached to a glass tube of narrow diameter; the volume of mercury in the tube is much less than the volume in the bulb. The volume of mercury changes slightly with temperature; the small change in volume drives the narrow mercury column a relatively long way up the tube. The space above the mercury may be filled with nitrogen gas or it may be at less than atmospheric pressure, a partial vacuum.

Mercury-in-glass thermometer for measurement of room temperature. Daniel Fahrenheit's mercury-in-glass thermometer was far more reliable and accurate than any that had existed before, and the mercury thermometers in use today are made in the way Fahrenheit devised.

Danzig-born Daniel Gabriel Fahrenheit, a pioneer of exact thermometry (or precision thermometry. He invented the mercury thermometer (first practical, accurate thermometer) and Fahrenheit scale (first standardized temperature scale to be widely used).