GK
BIG BANG THEORY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Law of Gravity
|
|
|
Law of Thermodynamics
|
|
|
Hubble’s Law
|
|
|
Doppler Effect
|
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: -… basis for what is called Hubble’s law, which correlates the recessional velocity of a galaxy with its distance from Earth. That is to say, the greater the redshift manifested by light emanating from such an object, the greater the distance of the object and the larger its recessional velocity (see…
Detailed explanation-3: -The velocity, v, of a galaxy is measured using the Doppler effect. The radiation coming from a moving object is shifted in wavelength: where is the rest wavelength of the radiation, and is the amount the radiation has been shifted (the observed wavelength minus the rest wavelength).