ESS
Grade-9
Easy
Question
CBR is___________.
- Cosmic black radiation
- Cosmic back radiator
- Cosmic background radiation
- Cosmic Blue radiation
Hint:
The cold remnants of the first light that traveled freely through space.
The correct answer is: Cosmic background radiation
- Cosmic background radiation (CBR and sometimes called relic radiation) is a long wavelength type of electromagnetic radiation.
- It is a residual effect caused due to the big bang which took place 13.8 billion years ago.
- So, the correct option is c.
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_______ theory states that an explosion created the universe.
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ESSGrade-9
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