Question

Liquid ________ is filled with the bulb of a clinical thermometer.

Answer 1

1. A mercury thermometer is commonly used in a thermometer
2. When the bulb is heated, mercury in the bulb expands and rises up in the capillary tube. The height of the mercury gives the reading of temperature.
3. mercury is used as it has a high boiling point also it can sustain high temperatures.

Hence, Liquid mercury is filled with the bulb of a clinical thermometer.