Correct answer: (b) 3 and 4 only
Explanation
- A
1 and 2 only
(a) 1 and 2 only. Statement 1 describes VR, not AR: AR does not shut out the physical world. Statement 2 describes AR (computer images on real surroundings), not VR. Both labels are swapped. Not the key.
- B
3 and 4 only
(b) 3 and 4 only. AR keeps the user in the real world and overlays simulated content. VR transposes the user into a generated scene and takes over vision (typically via a headset). Statements 1 and 2 are reversed. That pair is the official key.
- C
1, 2 and 3
(c) 1, 2 and 3. Statements 1 and 2 are false. Not the key.
- D
4 only
(d) 4 only. Statement 3 is also true. Dropping AR’s correct description is not the key.
Summary. Official key is (b). AR overlays; VR immerses. Statements 1 and 2 swap the two technologies. Statements 3 and 4 state the standard distinction. Honour (b).
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.