Tag: life cycle of stars

Quizzes (6) Questions (93)

Questions Related to life cycle of stars

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

Why does sun appear larger than other stars to us?

  1. It is larger than other stars.

  2. It is farther than other stars.

  3. It is closer than other stars.

  4. It is faster than other stars.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sun is much closer to us as compared to other stars. Hence, it subtends larger angle at eyes compared to other stars and appear larger. Note that many stars are much larger than sun in size.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies
Inside the Sun, _______ reactions take place at high temperature and enormous pressure. Fill in the blank

  1. nuclear fusion

  2. nuclear fission

  3. catalyze

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nuclear fusion means merging of separate elements as a unified whole to form heavy nuclei resulting in release of enormous amount of energy.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

From which part of Sun does the energy from nuclear fusion is generated?

  1. Core

  2. Radiative Zone

  3. Convective Zone

  4. From both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Central region of the Sun is called the core. Core is where the nuclear reaction takes place. 

Core is the region where the energy from nuclear fusion is generated.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

What are known as Sun Spots?

  1. Cooler regions on photosphere

  2. Hotter regions on photosphere

  3. Cooler regions on stratosphere

  4. Hotter regions on stratosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Spots formed on the surface of the Sun that are darker and cooler are called the Sun's spots.

They may differ in size from small to large also.