Question

ii) which of the following material is diathermanous ?
a) iron b) wood c) dry air d) water vapour​

Answer 1

Answer:

Explanation:

dry air

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Answer 2

The material (c) dry air is diathermanous

Explanation:

• Diathermancy describes the fact of various fluids that allows light rays to travel through them without being heated. As a result, a diathermanous substance is heat "permeable."

• Diathermanous substances are ones that cannot be penetrated by infrared light. For example, rock salt, pure air, and glass. Diathermancy is characterized by sinking over damp or wet surfaces.

• Sunlight doesn't really heat air from the atmosphere because it is diathermanous. The atmosphere is heated by long-wave temperature radiation emitted by soil and, in especially, water just on the planet's surface.