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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 ?
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3



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The phenomenon of light being affected by gravity is a prediction of Albert Einstein's General Theory of Relativity. According to this theory, gravity is not just a force between objects, but it is also the curvature of spacetime caused by mass and energy. As a result, light traveling through a gravitational field is bent or affected by gravity.

The expansion of the universe is another prediction of the General Theory of Relativity. Einstein's equations showed that the universe could not be static but rather must be either expanding or contracting. Later observations, such as the redshift of distant galaxies, confirmed that the universe is indeed expanding.

The concept that matter warps its surrounding space-time is also a prediction of the General Theory of Relativity. Massive objects create a curvature or dent in the fabric of space-time, and other objects moving in this curved space-time will follow curved paths. This is commonly illustrated by the analogy of a heavy ball placed on a rubber sheet, causing the sheet to deform and objects rolling near the ball to follow curved paths.


How was this explanation?

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