Q955
Temperature of distant luminous bodies can be determined by
A.
Mercury thermometers
B.
Gas thermometers
C.
Pyrometers
AnswerD.
Colour thermometers
Answer: Option C
Solution
Answer: Option C
Solution:
A pyrometer is a type of remote-sensing thermometer used to measure the temperature of a surface. It is a device that from a distance determines the temperature of a luminous surface from the spectrum of the thermal radiation it emits, a process known as pyrometry.