LIGO experiment confirmed one of the predictions of :

String theory

Special theory of relativity

Quantum mechanics

General theory of relativity

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UPSC NDA-1 – 2024

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LIGO (Laser Interferometer Gravitational-Wave Observatory) is a large-scale physics experiment designed to detect cosmic gravitational waves. The existence of gravitational waves, which are ripples in spacetime caused by massive accelerating objects, was a major prediction of Albert Einstein’s General Theory of Relativity, published in 1915. LIGO made the first direct detection of gravitational waves in 2015, confirming this prediction.

– LIGO detects gravitational waves.
– Gravitational waves are a prediction of Einstein’s General Theory of Relativity.
– The first direct detection of gravitational waves by LIGO provided strong evidence for General Relativity.

String theory, Special Theory of Relativity, and Quantum Mechanics are other significant areas of modern physics, but the detection of gravitational waves is a direct verification of a specific prediction from General Relativity. General Relativity describes gravity as the curvature of spacetime caused by mass and energy.

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