Question

What type of star is our Sun?
A) Low-mass star
B) Intermediate-mass star
C) High-mass star
D) Black hole

Answer 1

Hint: Sun is situated at the center of our solar system and its gravity keeps every planet and particle in orbit.
The gravitational force of attraction between the planet and particle makes the planets and particles to revolve in an orbit around the sun.


Complete step by step solution:
The Sun is by far the largest object in the solar system. The sun’s mass is more than 99.8% of the total mass of the Solar System.
There are many stars which are similar to the star Sun, therefore it is sometimes called the “ordinary star”. There are many smaller stars than larger ones. By the order of mass, the sun is included in the top 10% of the stars. The average size (by mass) of stars in our galaxy is probably less than half the mass of the Sun.
The Sun is made of about 70% hydrogen and 28% helium by mass and rest 2% is metals. This changes slowly over time as the Sun converts hydrogen to helium in its core.
The Sun is about 4.5 billion years old. Since its birth it has used up about half of the hydrogen in its core. The expected future age of the Sun is 5 billion years. By that time the luminosity of the sun will get doubled. Eventually it will run out of hydrogen fuel. It will then be forced into radical changes which, though commonplace by stellar standards, will result in the total destruction of the Earth (and probably the creation of a planetary nebula).

Hence, option C is the correct answer.

Note: The energy in the sun is produced from the nuclear fission process.
There are eight planets and a large number of smaller objects orbiting under the Sun's gravity.