Questions About Light Spectra?

Posted on 2015-10-09 06:11:00 in Physics by STEFEN

have two questions about my physics homework:

1) Which of the following would produce a line spectrum rather than a continuous spectrum?

A: a yellow (sodium) street light
B: a normal filament light bulb
C: sunlight
D: a white hot piece of steel

2) Which of the following is not true for both absorption and emission spectra?

A: they are the result of the movement of electrons between energy levels
B: the electrons can move between any two energy levels
C: the frequency of the light is related to the difference in the energy levels
D: There is a convergence towards the high frequency end

Any help with these two questions would be greatly appreciated as I'm completely lost. Please explain your answer so that I can understand them better.

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