Answered: 12. When a radio telescope observes a… | bartleby

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12. When a radio telescope observes a region of space between two stars, it detects
electromagnetic radiation that has a wavelength of 0.21 m. This radiation was emitted by
hydrogen atoms in the gas and dust located in that region. What is the frequency of this
radiation?
A) 7.1 x 1010 Hz
B) 2.1 × 1014 Hz
C) 3.0 × 10% Hz
D) 6.9 x 101 Hz
E) 1.4 x 10° Hz
Ans: E

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