Q. Temperature of distant luminous bodies can be determined by

A
Mercury thermometers
B
Gas thermometers
C
Pyrometers
D
Colour thermometers
Solution:

Pyrometer is a device which is used for measuring temperatures of very high order of any object.


Mercury thermometers- can be used to determine body, liquid, and vapor temperature.
Gas thermometers- Such thermometer is used in metrological works

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