Question : Which of the following is considered to be the fifth state of matter?
Option 1: Bose-Einstein condensate
Option 2: Plasma
Option 3: Solid
Option 4: Gas
Correct Answer: Bose-Einstein condensate
Solution : The correct answer is Bose-Einstein condensate .
The fifth state of matter is known as Bose-Einstein condensate (BEC). It was first predicted by Albert Einstein in the 1920s and was experimentally realised in 1995. In a Bose-Einstein condensate, a group of atoms is cooled to near absolute zero, causing them to occupy the same quantum state, leading to unique quantum effects at the macroscopic level.
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