Prelims › Past Papers
Q62·GS Paper 1 · Prelims 2018

Einstein's General Theory of Relativity

S&TPhysics and CosmologyStatement-basedEasyStatic

Question

Consider the following phenomena:

1Light is affected by gravity.
2The Universe is constantly expanding.
3Matter 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.

    Light is affected by gravity.

  2. 2.

    The Universe is constantly expanding.

  3. 3.

    Matter warps its surrounding space-time.

Options

a

1 and 2 only

b

3 only

c

1 and 3 only

d

1, 2 and 3

Answer

Explanation

Einstein's General Theory of Relativity (1915) makes several key predictions: (1) Light bends due to gravity (gravitational lensing), confirmed by Eddington in 1919. (2) The universe is not static but dynamic; while the Big Bang theory and evidence of expansion came later, the mathematics of GR allows for an expanding universe (Friedmann solutions). (3) Massive objects curve spacetime around them, which is a central prediction of GR. All three phenomena are indeed predictions or implications of General Relativity. Statement 2, while confirmed observationally, is consistent with GR's framework. > GR predicts gravity bends light, matter curves spacetime, and allows dynamic universe expansion. Answer: (d).

Question details

Year

2018

Paper

GS Paper 1

Question

Q62

Subject

Science & Technology

Sub-topic

Physics and Cosmology

Type

Statement-based

Difficulty

Easy

Nature

Static

Source hint

Physics and Modern Science Concepts

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