Aluminium is not normally a source of light. I suppose if you made a large mirror out of it you could turn that into a secondary source.
A secondary source is one that pulls from primary sources. Primary sources are direct reporting or accounts of historical events from those who witnessed them, and secondary sources analyze and summarize those.
sun is the primary source of heat and light......
The primary light source is the sun for the planet Earth.
Because there would be no secondary colors without primary colors mixing together.
Primary colours of light are red, blue and green and when combined in the correct intensity they produce white light. The secondary colours of light are magenta, yellow and cyan which result from combinations at the correct frequencies of primary colours.
It produces a secondary color of light.
Magenta is not a primary color of light. The primary colors of light are red, green, and blue. Magenta is a secondary color created by combining red and blue light.
in primary light absorbed by outer molecule while in secondary re-absorbance occurs
The Sun.
The Sun
our primary source comes from the sun.
Magenta, cyan, and yellow are not considered primary colors of light. These colors are known as secondary colors when it comes to light, as they can be created by combining primary colors of light.