"Emissivity Problem - 8000K Plasma at 325nm

[Carrie003]

Homework Statement

I am given a plasma at 8000 Kelvin and assume its an ideal blackbody. I have slit of 0.01 cm^2, observing at wavelength 325 nm with a spectral bandwidth of 0.05 nm.

The problem asks that the actually continuum under these conditions is 1 pW. What is the emissivity?

Homework Equations

Planck's curve

The Attempt at a Solution

I do not know how to treat a continuum when before I was looking at a particular bandwidth.

 

[Redbelly98]

Homework Statement

I am given a plasma at 8000 Kelvin and assume its an ideal blackbody. I have slit of 0.01 cm^2, observing at wavelength 325 nm with a spectral bandwidth of 0.05 nm.

Does this mean there is a detector that is sensitive to a 0.05 nm-wide band at wavelength 325 nm?

The problem asks that the actually continuum under these conditions is 1 pW.

I don't understand this statement. Could you please quote the problem question exactly, word-for-word?

What is the emissivity?

Of what? The detector?

Homework Equations

Planck's curve

The Attempt at a Solution

I do not know how to treat a continuum when before I was looking at a particular bandwidth.