There is only one answer. Suppose you used light from Proxima Centauri (second c

Question

There is only one answer.

Suppose you used light from Proxima Centauri (second closest star to Earth) with a sensitive scope, and you found absorption bands almost identical in wavelength to the emission bands you would see from the hydrogen lamp demonstrated in lecture, what would you conclude?

a. There is hydrogen in Proxima Centauri

b. There is no hydrogen in Proxima Centauri

c. There is oxygen in Proxima Centauri

d. There is no oxygen in Proxima Centauri

e. There is water in Proxima Centauri

f. There is no water in Proxima Centauri

Explanation / Answer

The obvious conclusion is that there is hydrogen in Proxima Century. This spectroscopic method is in fact a guiding principle behind the analysis of the gaseous content of any star.

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