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The velocity of heat radiation in vacuum...

The velocity of heat radiation in vacuum is .

A

equal to that of light

B

equal to that of sound

C

greater than that light

D

less than that sound

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The correct Answer is:
A
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NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Absorption, reflection and transmission of heat radiation)
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  2. In a thermos flask, attempt is made to reduce losses of heat by

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  3. The velocity of heat radiation in vacuum is .

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  4. Thermal radiations are electromagnetic radiation belonging to

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  5. The fire screen produces the sensation of cooling because it does not ...

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  6. The fastest mode of transfer of heat is

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  7. Heat radiations cannot exhibit the following phenomenon. That is

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  8. SOLAR COOKER

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  9. The thermal radiations are similar to .

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  10. Thermos flask prevents heat loss by

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  11. On which of the following factors does the intensityof heat radiations...

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  12. Cloudy nights are warmer than the nights with clean sky. Explain.

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  13. Two persons ordered tea in a restaurant and waited for a friend to arr...

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  14. Heat radiation have wavelengths in the region of

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  15. The substance which are transparent to thermal radiations are

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  16. Two bodies one hot an the other cold are kept in vacuum. What will hap...

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  17. On which one of the factors do the nature of the tehrmal radiation dep...

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  18. A black body at high temperature emits thermal radiations of

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  19. Under steady state, the temperature of a body

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  20. The slowest mode of transfer of heat is

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