Multiple Choice
Interstellar matter blocks our view of the disk of our Galaxy
A) not at all at any wavelength.
B) more-or-less equally at all wavelengths from radio waves to light waves.
C) most at radio wavelengths,where hydrogen absorbs radio waves efficiently,and least at optical wavelengths.
D) more at optical wavelengths,less in the infrared,and not at all at radio wavelengths.
Correct Answer:
Verified
Correct Answer:
Verified
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