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If an athermanous body absorbs 20% of th...

If an athermanous body absorbs 20% of the incident radiant energy, then reflection coefficient of the body is

A

0.2

B

zero

C

0.8

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
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NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Absorption, reflection and transmission of heat radiation)
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  2. Infrared radiation is detected by

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  3. A hot and a cold body are kept in vacuum separated from each other. Wh...

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  5. Athermanous bodies are those

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  6. The transmission of heat by molecular collision is called

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  7. When thermal radiations incident on athermanous medium, the temperatur...

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  8. The coefficient of absorption of the thermal radiation of black body ...

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  9. The sum of the absorptance, reflectance and transmittance of a body is

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  10. The substance which are transparent to thermal radiation are

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  11. Absorptive power of a body depend upon

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  12. The coefficient of transmission is the ratio of

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  13. The coefficient of reflection is the ratio of

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  14. A good absorber is a

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  15. The diathermanous is

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  16. The coefficients off absorption and reflection of the surface of a thi...

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  17. Out of 10J of radiant energy incident on a surface, the energy absorbe...

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  18. If an athermanous body absorbs 20% of the incident radiant energy, the...

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  19. The coefficients of absorption and reflection of the surface of a body...

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