Question

What is the symbol of infrared and why

Answer 1

The symbol of infrared is IR. One of the most common uses of infrared radiation is in heat-sensitive thermal imaging cameras. These can be used to study human and animal body heat patterns, but more often, they are used as night-vision cameras.

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Answer 2

Answer:

Infrared waves have longer wave length than visible light and dust in space with less scattering and absorption. thus infrared energy can also reveal object in the universe that cannot be Seen in visible light using optical telescope.