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Author Question: How can Kirchhoff's Laws be used to deduce something about the nature of the light source? What ... (Read 48 times)

OSWALD

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on: Jul 27, 2018
How can Kirchhoff's Laws be used to deduce something about the nature of the light source?
 
  What will be an ideal response?

Question 2

A protostar develops a bipolar flow of gas when it is still surrounded by an equatorial disk of ________.
 
  Fill in the blank(s) with correct word


bubulittle310@msn.cn

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A continuous spectrum will peak at a certain color, giving us the temperature of the source. But a continuum can be created by any dense hot body, be it solid, liquid, or gas, and we know nothing of its composition. Emission lines reveal the component atoms in the thin hot gas, and Doppler shifts the motion of the gas atoms. Likewise the absorption lines reveal composition and motion, but that the gas must be too cool to emit the bright line spectrum.

Answer to Question 2

dust


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