Current Electricity

Question

How are infrared waves produced? Why are these referred to as 'heat waves’? Write their one important use.

Solution

Infrared waves are produced by hot bodies and molecules.

They are referred as heat waves because they are readily absorbed by water molecules in most materials, which increase their thermal motion, so they heat up the material.

Infrared waves are used for therapeutic purpose and long distance photography.

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Current Electricity

How are infrared waves produced? Why are these referred to as 'heat waves’? Write their one important use.

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