A diathermanous substance _______________ the thermal radiation completely?
Correct answer: C. Transmits
- A. Absorbs
- B. Reflects
- C. Transmits
- D. None of these
Explanation
A diathermanous material allows thermal radiation to pass through it, so it transmits radiation. An opaque material may absorb or reflect radiation, but a diathermanous substance is defined by transmission.
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