Which of the Following Is Not an Observed Characteristic of the Cosmic

question 38

Multiple Choice

Which of the following is not an observed characteristic of the cosmic microwave background?

• A)It has a perfect thermal radiation spectrum.
• B)Its temperature is the same everywhere,except for small variations at the level of 1 part in 100,000.
• C)Its temperature is a little less than 3 Kelvin (3 degrees above absolute zero).
• D)It contains prominent spectral lines of hydrogen,the primary chemical ingredient of the universe.

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Definitions:

Government Policy

Strategies and actions taken by a government to manage public resources and regulate national affairs.

Friedman And Phelps

Economists Milton Friedman and Edmund Phelps, known for their work on the natural rate of unemployment and the expectations-augmented Phillips curve.

Natural Rate

The long-term equilibrium rate of unemployment or economic output, unaffected by short-term fluctuations.

Constant

A fixed value or term that does not change in mathematical equations or scientific experiments.