The detection of ripples in space time known as gravitational waves here on Earth marks a watershed ...........

Science Affairs Physics

The detection of ripples in space-time, known as gravitational waves, here on Earth marks a watershed moment for astronomy and for science as a whole. Consider the following statements regarding this-

1. The signals of gravitational waves were detected by twin Laser Interferometric Gravitational-wave Observatory (LIGO) detectors.

2. The reason that gravitational waves have been so difficult to detect is that their effects are very tiny.

3. This opens the way to get information about the evolution of galaxies and black holes.

Which of the given above statements are correct?

1 and 3

1 and 2

2 and 3

1, 2 and 3

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Explanation:

All the statements are correct.

Gravitational waves are 'ripples' in space-time caused by some of the most violent and energetic processes in the Universe. Albert Einstein predicted the existence of gravitational waves in 1916 in his general theory of relativity. Einstein's mathematics showed that massive accelerating objects (such as neutron stars or black holes orbiting each other) would disrupt space-time in such a way that 'waves' of distorted space would radiate from the source (like the movement of waves away from a stone thrown into a pond).