Stellar Astrophysics MCQs with Answers

Welcome to the Stellar Astrophysics MCQs with Answers. In this post, we have shared Stellar Astrophysics Online Test for different competitive exams. Find practice Stellar Astrophysics Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Stellar Astrophysics.

Stellar Astrophysics Online Quiz

By presenting 3 options to choose from, Stellar Astrophysics Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Stellar Astrophysics Questions and Answers and click over the correct answer.

• Test Name: Stellar Astrophysics MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

0

---

Stellar Astrophysics

Please fill out the form before starting Quiz.

1 / 40

What is the Chandrasekhar limit?

The maximum mass of a stable white dwarf

The mass of the Sun

The minimum mass of a star

2 / 40

What is a white dwarf?

A small, dense star remnant

A type of neutron star

A star in the main sequence

3 / 40

What is the Hertzsprung-Russell diagram used for?

Determining star compositions

Measuring distances to stars

Classifying stars based on their luminosity and temperature

4 / 40

What is the name of the region around a black hole beyond which nothing can escape?

Singularity

Accretion disk

Event horizon

5 / 40

What is a supernova?

The explosion of a massive star

The formation of a new star

The collapse of a white dwarf

6 / 40

What is the main sequence lifetime of a star like the Sun?

Approximately 10 billion years

Approximately 1 billion years

Approximately 100 billion years

7 / 40

What is a black hole?

A large, dark star

A collapsed white dwarf

A region of space where gravity is so strong that nothing can escape

8 / 40

What is the term for the actual brightness of a star?

Luminosity

Apparent magnitude

Absolute magnitude

9 / 40

Which process powers the Sun?

Nuclear fusion

Chemical combustion

Nuclear fission

10 / 40

What type of galaxy is the Milky Way?

Irregular

Spiral

Elliptical

11 / 40

What is the surface temperature of the Sun?

5,778 K

10,000 K

4,000 K

12 / 40

What is a red giant?

An aging star in the later stage of its life

A young, hot star

A newly formed star

13 / 40

What type of star is the Sun?

Red dwarf

G-type main-sequence star (G dwarf)

Blue giant

14 / 40

What is the typical end state of a low-mass star?

White dwarf

Black hole

Neutron star

15 / 40

What is the spectral type of the hottest stars?

O-type

M-type

G-type

16 / 40

What is the closest star to Earth?

The Sun

Alpha Centauri A

Proxima Centauri

17 / 40

What determines the lifespan of a star?

Its composition

Its temperature

Its mass

18 / 40

What element do stars primarily produce during their lifetime?

Carbon

Oxygen

Helium

19 / 40

What is the primary factor that determines a star's color?

Its composition

Its surface temperature

Its size

20 / 40

What is the apparent change in position of a star due to Earth's orbit?

Doppler effect

Parallax

Proper motion

21 / 40

What phenomenon causes a star to twinkle?

Gravitational waves

Magnetic fields

Atmospheric turbulence

22 / 40

What is the primary component of a neutron star?

Neutrons

Protons

Electrons

23 / 40

What is the term for a sudden outburst of energy from the Sun?

Solar flare

Nova

Supernova

24 / 40

What is the term for the distance light travels in one year?

Light year

Parsec

Astronomical unit

25 / 40

What is a binary star system?

A single star with a large planet

A star with a black hole companion

Two stars orbiting a common center

26 / 40

What kind of object is a quasar?

An extremely bright and distant active galactic nucleus

A type of neutron star

A young star cluster

27 / 40

What is the remnant of a supernova?

Red giant

White dwarf

Neutron star or black hole

28 / 40

What is the most abundant element in the Sun?

Carbon

Helium

Hydrogen

29 / 40

What is the core temperature of the Sun?

1 million K

5,000 K

15 million K

30 / 40

What is the main sequence in the Hertzsprung-Russell diagram?

The region of giant stars

The end stage of stellar evolution

Where stars spend most of their lives

31 / 40

What is a neutron star?

A star composed primarily of neutrons

A type of red giant

A young, hot star

32 / 40

What is the process by which heavier elements are formed in stars?

Nucleosynthesis

Fusion

Fission

33 / 40

What is the term for the brightness of a star as seen from Earth?

Absolute magnitude

Apparent magnitude

Luminosity

34 / 40

What is a pulsar?

A dying red giant

A rotating neutron star emitting beams of radiation

A young, hot star

35 / 40

What is the fate of our Sun?

It will become a black hole

It will become a white dwarf

It will become a neutron star

36 / 40

What is the process by which stars form?

Gravitational collapse of gas clouds

Fusion of asteroids

Collision of stars

37 / 40

What is the closest galaxy to the Milky Way?

Triangulum Galaxy

Large Magellanic Cloud

Andromeda Galaxy

38 / 40

What is the primary source of energy for a main-sequence star?

Helium fusion

Hydrogen fusion

Carbon fusion

39 / 40

Which spectral class is the hottest?

O

M

B

40 / 40

What is the term for the balance between gravity and pressure in a star?

Dynamic equilibrium

Hydrostatic equilibrium

Thermal equilibrium

0%

Restart quiz

Download Certificate of Quiz Stellar Astrophysics

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

Download Stellar Astrophysics MCQs with Answers Free PDF

You can also download 100 Stellar Astrophysics Questions with Answers free PDF from the link provided below. To Download file in PDF click on the arrow sign at the top right corner.

If you are interested to enhance your knowledge regarding  English, Chemistry, Computer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.