Infra-red thermometers work by detecting the
A
radiation from the body and converting it to temperature
B
conduction of heat from the body
C
convective air pulse from the body
D
absorption of heat by the body
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
Infrared thermometers work by detecting the infrared radiation emitted by objects. They measure this radiation to determine the object's temperature without direct contact.
Source: WAEC / JAMB / NECO Classroom Archive (Record #70672)