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The temperature of the universe is 2.76 K. What is the wavelength of the cosmic background radiation, in millimeters?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter31: Particle Physics

Section: Chapter Questions

Problem 46P

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.

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The temperature of the universe is 2.76 K. What is the wavelength of the cosmic background radiation, in millimeters?

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