Which statement is INCORRECT about Cosmic Microwave Background radiation?
O its temperature is uniform.
O it consists of electromagnetic radiation that is a remnant of the Big Bang.
O It appears uniformly across the universe.
O it is evidence for the Little Bang Theory
The incorrect statement is: "it is evidence for the Little Bang Theory."
The incorrect statement about Cosmic Microwave Background (CMB) radiation is: "it is evidence for the Little Bang Theory."
The incorrect statement is: "it is evidence for the Little Bang Theory."
To determine the correct answer, let's analyze each statement:
1. "Its temperature is uniform": This statement is true. Cosmic Microwave Background (CMB) radiation is extremely uniform, with a temperature of approximately 2.7 Kelvin (-270.45 degrees Celsius).
2. "It consists of electromagnetic radiation that is a remnant of the Big Bang": This statement is also true. The CMB radiation is considered the afterglow of the Big Bang. It originated about 380,000 years after the Big Bang when the universe became transparent to photons.
3. "It appears uniformly across the universe": This statement is true. The CMB radiation is observed to have a nearly uniform distribution across the entire observable universe. It is one of the reasons why it's considered strong evidence for the Big Bang theory.
4. "It is evidence for the Little Bang Theory": This statement is incorrect. There is no scientific theory called "Little Bang Theory" related to the CMB radiation. This concept does not exist in astrophysics or cosmology.
Therefore, the incorrect statement is "it is evidence for the Little Bang Theory."