Class 11 Physics 10-2.Heat Transfer Radiation (General, Kirchoff's law, Black body, Prevost's Theory)

Easy

For a perfectly black body,the coefficient of emission (emissivity) is:

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A
zero.
B
unity.
C
less than one (non-zero).
D
infinity.

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Class 11 Questions

Class 11

Physics Questions

Chapter

10-2.Heat Transfer

Subtopic

Radiation (General, Kirchoff's law, Black body, Prevost's Theory)

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