Q. 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
1.Night vision
2.Breath analysers for detecing drunken driving
3.Computed tomography
4.Detecting people having fever in a crowd
✅ Correct Answer: (C)
1, 2 and 4
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