Question

Write short note on solar spectrum or continuous spectrum

Answer 1

• When we shine white light through a prism, you find out that it contains a rainbow of colors. This is called dispersion, and it happens because the light of different wavelengths, or colors, refracts, or bends, by different amounts inside the prism.
  
• The rainbow could be described as a spectrum, and if the spectrum goes all the way from red to violet, with no gaps, then it is a continuous spectrum.
• A beam of perfectly white light, as we would get under certain laboratory conditions, contains this kind of spectrum. We can create a continuous spectrum by heating up a material until it glows.
• Most light - even the light from the sun - does not contain a continuous spectrum.