Question
Which statement is INCORRECT about Cosmic Microwave Background radiation?(2 points)
Responses
it appeared only a few years ago
it appeared only a few years ago
It appears uniformly across the universe.
It appears uniformly across the universe.
its temperature is uniform.
its temperature is uniform.
it consists of electromagnetic radiation that is a remnant of the Big Bang
Responses
it appeared only a few years ago
it appeared only a few years ago
It appears uniformly across the universe.
It appears uniformly across the universe.
its temperature is uniform.
its temperature is uniform.
it consists of electromagnetic radiation that is a remnant of the Big Bang
Answers
GPT-4o mini
The incorrect statement about Cosmic Microwave Background (CMB) radiation is:
**it appeared only a few years ago.**
This statement is incorrect because CMB radiation originated shortly after the Big Bang, approximately 380,000 years after the event, not just a few years ago. The other statements are correct: CMB radiation does appear uniformly across the universe, its temperature is approximately uniform (with slight fluctuations), and it is indeed electromagnetic radiation that is a remnant of the Big Bang.
**it appeared only a few years ago.**
This statement is incorrect because CMB radiation originated shortly after the Big Bang, approximately 380,000 years after the event, not just a few years ago. The other statements are correct: CMB radiation does appear uniformly across the universe, its temperature is approximately uniform (with slight fluctuations), and it is indeed electromagnetic radiation that is a remnant of the Big Bang.