GENERAL KNOWLEDGE

GK

BIG BANG THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This is a young star that glows as gravity brings it together
A
Nebula
B
Protostar
C
Main-sequence star
D
Red giant
Explanation: 

Detailed explanation-1: -A protostar becomes a main sequence star when its core temperature exceeds 10 million K. This is the temperature needed for hydrogen fusion to operate efficiently. The length of time all of this takes depends on the mass of the star. The more massive the star, the faster everything happens.

Detailed explanation-2: -Star Formation As the cloud collapses, the material at the center begins to heat up. Known as a protostar, it is this hot core at the heart of the collapsing cloud that will one day become a star.

Detailed explanation-3: -When the force of gravity pulling in on the cloud is greater than the strength of internal pressure pushing out, the cloud collapses into a protostar.

There is 1 question to complete.