(Answers to odd-numbered Conceptual Questions can be found in the back of the book.)
Do you expect the light given off by (a) a neon sign or (b) an Incandescent light bulb to be continuous in distribution, or in the form of a line spectrum? Explain.
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Here, we have to explain which one will provide a line spectrum and a continuous spectrum.
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In the neon light, we are applying voltage between the ends of a glass tube where neon gas is kept at low pressure. So, the neon atoms will excited to a particular energy level and it will come to the ground state by giving off excess energy as radiations. So, the spectrum will be a line spectrum.