Why are infra-red waves often called heat waves ? Explain.

1.	Why are infra-red waves often called heat waves ? Explain.
Answer» Infrared rays are readily absorbed by the (water) molecules in most of the substances and hence increases their thermal motion. Detailed Answer : (a) Infra-red waves have ability to vibrate the electrons and whole atom on molecules of a body. This vibration increases the internal energy and temperature of the body.

Answer»

Infrared rays are readily absorbed by the (water) molecules in most of the substances and hence increases their thermal motion.

Detailed Answer :

(a) Infra-red waves have ability to vibrate the electrons and whole atom on molecules of a body. This vibration increases the internal energy and temperature of the body.

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Why are infra-red waves often called heat waves ? Explain.

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