GENERAL KNOWLEDGE

GK

BIG BANG THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
According to Hubble’s Law, the closer a galaxy is to us the ____ it is moving.
A
slower
B
no motion
C
faster
D
constant motion occurs
Explanation: 

Detailed explanation-1: -Hubble’s law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth.

Detailed explanation-2: -Using the ratios he observed, Hubble determined that the farther the galaxy, the greater the red shift. In other words, the greater the distance between a galaxy and the earth, the faster that galaxy was moving away from us.

Detailed explanation-3: -This is our freaky friend, the Hubble Constant, the idea that for every megaparsec of distance between us and a distant galaxy, the speed separating them increases by about 71 kilometers per second. Galaxies separated by 2 parsecs will increase their speed by 142 kilometers every second.

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