Define athermanous substances and diathermanous substances.

1.	Define athermanous substances and diathermanous substances.
Answer» 1. A substance which is largely opaque to thermal radiations, i.e., a substance which does not transmit heat radiations incident on it, is known as an athermanous substance. 2. A substance through which heat radiations can pass is known as a diathermanous substance.

Answer»

1. A substance which is largely opaque to thermal radiations, i.e., a substance which does not transmit heat radiations incident on it, is known as an athermanous substance.

2. A substance through which heat radiations can pass is known as a diathermanous substance.

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Define athermanous substances and diathermanous substances.

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