The following data is provided for the spectral distribution of the radiation emitted by a diffuse surface.
The following data is provided for the spectral distribution of the radiation emitted by a diffuse surface.
- Elambda (W/m2 micrometer) = 0 for lambda between 0 and 5
- Elambda (W/m2 micrometer) = 100 for lambda between 5 and 10
- Elambda (W/m2 micrometer) = 200 for lambda between 10 and 15
- Elambda (W/m2 micrometer) = 100 for lambda between 15 and 20
- Elambda (W/m2 micrometer) = 0 for lambda above 20
Provide the following:
- A plot of Elambda versus lambda, based on the given data
- Assumptions
- Total emissive power, E
- Total intensity of the radiation emitted, Ie
- Explain the reason why there are (or there are no) differences between the intensity emitted at 0 degrees versus at 30 degrees to the surface normal direction. Use a sketch and only one sentence.


