Question

If the energy radiated per second per sq. cm. of the surface for wave lengths lying between λ, and λ + dλ is represented by (eλ.dλ), then eλ is called

a.

absorptive power

b.

emissive power

c.

emissivity

d.

none of these

Posted under Mechanical Engineering

Answer: (b).emissive power

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Q. If the energy radiated per second per sq. cm. of the surface for wave lengths lying between λ, and λ + dλ is represented by (eλ.dλ), then eλ is called

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