Physics MCQ: Infrared rays are used in 1.Night vision 2.Breath analysers for detecing drunken driving 3.Computed tomography 4.Detecting people having fever in a crowd

Infrared rays are used in 1.Night vision 2.Breath analysers for detecing drunken driving 3.Computed tomography 4.Detecting people having fever in a crowd

Correct Answer: 1, 2 and 4

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