Question

Which of the following accurately describe some aspect of gravitational waves? Select all that apply. (A) Gravitational waves come from funnel-shaped regions of the universe(B) Gravitational waves are predicted to travel through space at the speed of light(C) The existence of gravitational waves is predicted by Newton's universal law of gravitation(D) The first direct detection of gravitational waves came in 2015(E) The existence of gravitational waves is predicted by Einstein's general theory of relativity(F) Gravitational waves carry energy away from their sources of emission(G) Gravitational waves are an extremely low-energy form of light

Answer 1

Explanation :

The points regarding the gravitational waves are as follows :

(1) Gravitational waves are predicted to travel through space at the speed of light. So, the speed of gravitational waves is also equals $c=3\times 10^8\ m/s$.

(2) The first direct detection of gravitational waves came in 2015. It is detected using a advanced LIGO detectors.

(3) The existence of gravitational waves is predicted by Einstein's general theory of relativity.

Hence, the correct options are (B), (D) and (E).

Answer 2

Answer:

Options:

(B) Gravitational waves are predicted to travel through space at the speed of light

D) The first direct detection of gravitational waves came in 2015

(E) The existence of gravitational waves is predicted by Einstein's general theory of relativity

Explanation:

Gravitational waves are invisible and very fast ripples that take place in space. The waves have speeds of 186  000 miles per second. This is the equivalent speed of light. These waves are so powerful that they squeeze anything that falls in their pathway. These waves are caused by the acceleration of mass. The accelerating mass sends energy through the gravitational field just the same way that accelerating charges send energy waves through electromagnetic fields.

The Laser Interferometer Gravitational-Wave Observatory operated by Caltech and MIT in the US was the first entity to officially detected gravitational waves on September 14, 2015.