Answer: B
The immense volume of matter
Explanation:
Stars are formed by cloud and dust, draw together by gravity.
But the longevity of a main sequence star lives depends on how massive it is. An enormous massive star burns faster due to its enormous material it contains and higher core temperatures caused by greater gravitational forces. While a less massive star will burn slowly and stick around the sun for a very long period. The structure of a main sequence star like our sun can therefore hold for a long time because of the immense volume of matter of star.
Answer:
Yes it is possible to have total internal reflection for light incident from air on water.
Explanation:
- The objective of total Internal Reflection is giving the full reflection of a ray of light within a medium.Rainbow is the best example for this question.
- It can be explained by the example of a rainbow in which light from the sun is travelling in the medium if air and goes through total internal reflection in the tiny water droplet resulting in splitting of the white light into its 7 components and thus forming a rainbow.
Answer:
Total energy =kinetic energy +potential energy.
