For a grey surface Options: A . &nbspReflectivity equals emissivity B . &nbspEmissivity equals transmissivity C . &nbspAbsorptivity equals reflectivity D . &nbspEmissivity is constant

For a grey surface

Question

For a grey surface

Options:

A . Reflectivity equals emissivity

B . Emissivity equals transmissivity

C . Absorptivity equals reflectivity

D . Emissivity is constant

Answer: Option D
Answer: (d).Emissivity is constant

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