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Dark Matter
Which of the following statements are correct with respect to Dark Matter?
- Dark Matter emits no light and cannot be seen directly
- Dark Matters are stars or planets.
- Astronomers do not detect gamma rays produced by them.
- Dark matter is black hole.
Select the correct answer using the codes given below:
A |
2, 3 and 4
|
|
B |
1, 3 and 4
|
|
C |
1 and 3
|
|
D |
1, 2, 3 and 4
|
Your Ans is
Right ans is C
Your Answer Is Correct
Your Answer Is Wrong
Explanation :
- Statement 1 is correct because dark matter emits no light and is not visible directly, so it cannot be stars or planets.
- Statement 2 is incorrect.
- Statement 3 is incorrect as Antimatter annihilates matter on contact, producing gamma rays. Astronomers do not detect them. Statement 4 is correct because Dark matter is not black hole.
Source: CSC May 2019
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