Question

what is the emmisive power of perfect blackbody at 1000K
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Answer 1

Answer:

Emittance (or emissive power) is the total amount of thermal energy emitted per unit area per unit time for all possible wavelengths. Emissivity of abody at a given temperature is the ratio of the total emissive power of a body to the totalemissive power of a perfectly black body at that temperature.

Answer 2

The emmisive power of perfect blackbody at 1000K is 230 $\frac{j}{\frac{m^2}{s}}$

Explanation:

• When a certain Opaque object or artefact can follow the rules and laws of radiation that are related thermally then the subject are termed as black body.
• When a black body is taken into consideration then it shall absorb all the radiations are energy that are being produced on it and will emit the least possible.
• If it is considered as perfect then the emission of radiation will be near to zero.
• The temperature of the body is given as 1000 degrees kelvin and the emissive power will be E = $\frac{Q}{(t \times a)}$

                                                              ⇒ $\frac{1380}{3 \times 2}$

                                                   = 230 $\frac{j}{\frac{m^2}{s}}$.

To know more:

What is the emissive power of a perfect blackbody at 1000 K?​

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