GK
BIG BANG THEORY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Blue shift of the furthest galaxies
|
|
|
Red shift of the furthest galaxies
|
|
|
Comic Microwave Background Radiation
|
|
|
The ratio of elements in the universe
|
Detailed explanation-1: -The evidence that the universe is expanding comes with something called the red-shift of light. Light travels to Earth from other galaxies. As the light from that galaxy gets closer to Earth, the distance between Earth and the galaxy increases, which causes the wavelength of that light to get longer.
Detailed explanation-2: -Cosmological Redshift Hubble’s Law of cosmological expansion was first formulated by Edwin Hubble in 1929. Hubble compared the distances to galaxies to their redshift and found a linear relationship. He interpreted the redshift as being caused by the receding velocity of the galaxies.
Detailed explanation-3: -In 1929, Edwin Hubble provided the first observational evidence for the universe having a finite age. Using the largest telescope of the time, he discovered that the more distant a galaxy is from us, the faster it appears to be receding into space. This means that the universe is expanding uniformly in all directions.