UPSC Previous Year Question | Prelims GS | 2018

Consider the following phenomena: 1. Light is affected by gravity. 2. The Universe is constantly expanding. 3. Matter warps its surrounding space-time. Which of the above is/are the prediction/predictions of Albert Einstein's General Theory of Relativity, often discussed in media?

  1. 1 and 2 only
  2. 3 only
  3. 1 and 3 only
  4. 1, 2 and 3

Answer

Correct Answer

1, 2 and 3

Explanation

General relativity predicts gravitational bending of light, warping of space-time by matter, and (through its cosmological solutions) an expanding universe, so all three are correct.

Topics: general theory of relativity predictions, physics, relativity and cosmology, science and technology