How does Augmented Reality (AR) work?

Augmented Reality (AR) is the technology that superimposes an image onto a user’s view of the real world and enhances it with sound, touch, and even smell.You can read about Augmented Reality: Definition, Applications and Allied Technology in the given link.

Further readings:

1. Topic-Wise GS 3 Questions for UPSC Mains
2. Science & Technology Notes For UPSC – General Science Notes