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What is the best wavelength to use if an astronomer wants to study the composition of planets and stars?

A.Gamma rays
B.Radio waves
C.Visible light
D.Microwaves My teacher said it wasnt A

2 Answers

3 votes
it’s B. hope this helps!
answered
User Valentin Rocher
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3 votes
wouldn’t this be visible light
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User Adriatic
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