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The essence of Kirchhoff's law is that a...

The essence of Kirchhoff's law is that a good absorber must be a

A

bod radiator

B

bad conductor

C

good conductor

D

good radiator

Text Solution

Verified by Experts

The correct Answer is:
D
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NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Kirchhoffs law of heat radiation)
  1. The essence of Kirchhoff's law is that a good absorber must be a

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  2. The black body have

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  3. A piece of charcoal and a piece of shining steel of the same surface a...

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  4. On inverstigation of light from three different stars A,B and C it was...

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  5. Three identical spheres of different materials iron gold and silver ar...

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  6. Which of the following is a good emitter

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  7. Gren house effect is

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  8. A spherical earthen vessel with a hole is heated in a furnace till it ...

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  9. Who explained the Fraunhoffer line in the spectrum of solar radiations...

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  10. A good absorber of heat is a good radiator of heat, this statement is

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  11. Relation between emissivity e and absorptive power a is (for black bod...

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  12. Which of the following statements is wrong?

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  13. Half part of ice block is covered with black cloth and rest half is co...

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  14. If between wavelength lambda andlambda + dlambda, e(lambda) and a(lamb...

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  15. When p calories of heat is given to a body, it absorbs q calories, t...

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  16. Distribution of energy in the spectrum of a black body can be correctl...

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  17. At a certain temperature for given wavelength, the ratio of emissive p...

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  18. The Kirchhoff's law leads to the conclusion that the good radiators of...

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  19. If E is emissive power and 'a' is the coefficient of absorption of a b...

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