At a certain temperature for given wave length , the ratio of emissive power of a body to emissive power of black body in same circumstances is known as

relative emissivity

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emissivity

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absorption coefficient

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coefficient of reflection

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Solution

The correct options are
B emissivity
C absorption coefficient
By Kirchhoff's law at a certain temperature for given wave length , the ratio of emissive power of a body to emissive power of black body in same circumstances is known as coefficient of absorption of the body. And it is also equal to emissivity of the body
option (B)&(C) are the correct answers

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Similar questions

(e)

(a)

10

8

(E)

(E_{b})

α = absorptivity

- 73^{o} C

327^{o} C

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