Answer:
second one is correct that is right
Well sorry but this is the wrong language.
In one of the most amazing coincidences in all of science,
the part of the electromagnetic spectrum that's visible to the
human eye is called "visible light".
Visible light is not 'divided' into anything. We mention the names
to seven of the colors in visible light. But all of the thousands of
OTHER colors that we can see are in there too, even though we
don't bother to list their names when we buzz through the rainbow
in the third grade.
The Luminosity of a star is proportional to its Effective Temperature to the 4th power and its Radius squared.
