Question

Define athermanous substances and diathermanous substances.

Answer 1

Answer:

A body which allows heat radiation to pass through it is called a Diathermanous Body(diathermic or diathermal bodies). Example: oxygen, quartz, hydrogen, iodine. Athermanous Body is a body which doesn't allow the passage of heat radiation through it.Example: Moist air, water, wood, etc.

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