GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Dark matter is heavier than ordinary matter
|
|
|
Dark matter gives off light and ordinary matter doesn’t
|
|
|
Dark matter is hypothetical and ordinary matter is known by its characteristics
|
|
|
Dark matter is visible and ordinary matter is not
|
Detailed explanation-1: -Unlike normal matter, dark matter does not interact with the electromagnetic force. This means it does not absorb, reflect or emit light, making it extremely hard to spot. In fact, researchers have been able to infer the existence of dark matter only from the gravitational effect it seems to have on visible matter.
Detailed explanation-2: -Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe.
Detailed explanation-3: -Hypothetical particles and states of matter that have not yet been encountered, but whose properties would be within the realm of mainstream physics if found to exist. Several particles whose existence has been experimentally confirmed that are conjectured to be exotic hadrons and within the Standard Model.