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Infrared thermometer works on the principle of which of the following Radiation Laws?
Question

Infrared thermometer works on the principle of which of the following Radiation Laws?

A.

Beer’s law

B.

Stefan-Boltzmann Law

C.

Wien’s Law

D.

Kirchoff’s Law

Correct option is B


Infrared thermometers operate based on the Stefan–Boltzmann Law, which states that the total energy radiated per unit surface area is proportional to the fourth power of the object's temperature. It enables temperature measurement by detecting infrared radiation emitted by objects.

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