incandescent bulb is equivalent to white light, i.e it has all the seven wavelengths of light. therefore when passed through a prism it is disperses into all the seven wavelengths WITHOUT ANY SPACES...
Dark-line spectrum is a "photo-negative" of emission spectrum. It is the gaps that appear in precisely the same location as corresponding bright lines. produced by a cool gas with a hot solid and you
It's a line spectrum because of the quantization of energy- meaning you only see energy with levels n=1,2,3.... One would never see the energy level n=2.8 for instance- that would be the case if it...
A continuous spectrum is produced by exciting atoms with electricity or radiation and the atoms of different elements give off radiation specific to the element. If all elements are present a...