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The above is an attempt to render the visible spectrum on
your monitor. Different wavelengths of light
(λ, from .380 μm to .750 μm) are
seen by the human eye as different colors
(V=violet, B=blue, G=green, Y=yellow, O=orange, R=red).
For the following questions, you should
assume blue light corresponds to a wavelength of .450 μm,
green light corresponds to a wavelength of .550 μm, and
red light corresponds to a wavelength of .700 μm.
Of course there is a continuum of color variation across
the color spectrum.
The following plots (called spectra, or spectral energy distributions) display the
amount of light energy as a function of wavelength.
The y-axis has been labeled "Energy Flux".
Properly speaking it is "spectral irradiance" but is
often labeled "Intensity" in textbooks. You can think of
it as the amount of light energy (watts) of a particular
wavelength (μm) hitting a square meter (m2).
When we need a symbol to denote this quantity we will
denote it as Fλ.
This quiz deals exclusively with ideal "blackbody" spectra.
The light you would receive from such an object just depends on
the object's radius, distance from you, and temperature. The next
quiz will deal with more complex spectra, like that from the Sun.
A B C D E
A B C
A B C D
A B C
A B C D E F