CMB Wavelength

Classical Mechanics Level 3

The cosmic microwave background CMB is a bath of blackbody radiation permeating the universe at a temperature of \(2.7 \text{ K}\). What is the wavelength of the radiation in the CMB in centimeters?

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100 Day Summer Challenge

CMB Wavelength

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.