Question

Which one of these thermometers is/are not suited for measuring rapidly changing temperatures?

• A. Constant-volume gas thermometer
• B. Resistance thermometer
• C. Thermocouple
• D. Mercury-in-glass thermometer

Answer 1

Answer: (A), (B), (D)

Resistance thermometer
Constant-volume gas thermometer
Mercury-in-glass thermometer

A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming electrical junctions at differing temperatures. A thermocouple produces a temperature-dependent voltage as a result of the thermoelectric effect, and this voltage can be interpreted to measure temperature. Thermocouples are a widely used type of temperature sensor.

though thermocouple is not suited for measuring rapidly changing temperatures.

Hence correct option is C