Cosmology MCQs with Answers

adminApril 2, 2024

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

Cosmology Online Quiz

By presenting 3 options to choose from, Cosmology 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 Cosmology Questions and Answers and click over the correct answer.

Test Name: Cosmology MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Cosmology

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1 / 40

What is the age of the universe, approximately?

4.5 billion years

13.8 billion years

100 million years

2 / 40

What is the term for the change in frequency or wavelength of light from an object moving toward or away from the observer?

Doppler effect

Parallax

Redshift

3 / 40

What is a quasar?

An extremely bright and distant active galactic nucleus

A type of neutron star

A young star cluster

4 / 40

What is the term for the large-scale structure of the universe, including galaxies, clusters, and voids?

Black hole

Nebula

Cosmic web

5 / 40

What is the primary evidence for the Big Bang theory?

Expansion of the universe

Redshift of galaxies

Cosmic microwave background radiation

6 / 40

What is the term for the boundary beyond which events cannot affect an observer?

Hubble Horizon

Cosmic Horizon

Event Horizon

7 / 40

What is the most abundant element in the universe?

Oxygen

Hydrogen

Helium

8 / 40

What is the approximate temperature of the cosmic microwave background radiation?

1000 Kelvin

100 Kelvin

2.7 Kelvin

9 / 40

What is the largest known structure in the universe, consisting of a massive group of galaxies?

Galaxy filament

Supercluster

Galaxy cluster

10 / 40

What is the critical density of the universe?

The density of visible matter

The density of dark matter

The density required for the universe to be flat

11 / 40

What is the name of the theory that suggests our universe is just one of many universes?

Multiverse

Quantum Mechanics

String Theory

12 / 40

What is the name of the galaxy that contains the Milky Way?

Andromeda

Triangulum

The Local Group

13 / 40

What is the name of the mission that provided the first detailed map of the cosmic microwave background radiation?

Herschel

COBE

WMAP

14 / 40

What is the fate of the universe according to the Big Crunch theory?

The universe will collapse in on itself

The universe will expand forever

The universe will rip apart

15 / 40

What is the cosmological principle?

The principle that all galaxies are stationary

The assumption that the universe is homogeneous and isotropic on large scales

The theory that the universe is static

16 / 40

What is the primary composition of dark matter?

Ordinary matter

Antimatter

Unknown particles

17 / 40

What is dark matter composed of?

Unknown particles

Black holes

Neutrinos

18 / 40

What is the term for a universe that has enough mass to stop expanding and begin contracting?

Closed universe

Open universe

Flat universe

19 / 40

What is the approximate percentage of dark matter in the universe?

About 5%

About 27%

About 70%

20 / 40

What is the name of the hypothetical object from which not even light can escape due to its strong gravitational pull?

White Dwarf

Neutron Star

Black Hole

21 / 40

What is the term for the boundary around a black hole beyond which nothing can escape?

Singularity

Accretion disk

Event horizon

22 / 40

What is the name of the spacecraft that mapped the cosmic microwave background radiation with high precision?

Hubble

Planck

Kepler

23 / 40

What is the term for the average density of matter required for the universe to be flat?

Critical density

Baryonic matter density

Dark matter density

24 / 40

What is the term for the earliest light that we can observe in the universe?

Infrared radiation

Ultraviolet light

Cosmic microwave background radiation

25 / 40

What is the term for the apparent shift in the frequency of light due to the motion of the source relative to the observer?

Doppler Effect

Redshift

Blueshift

26 / 40

What is the primary method for measuring distances to galaxies?

Parallax

Direct measurement

Redshift measurements

27 / 40

What is the name of the theory that describes the rapid expansion of the universe in its early stages?

Big Bang

Steady State

Inflation

28 / 40

What is the process by which stars exhaust their nuclear fuel and cease to produce energy?

Stellar Evolution

Stellar Nucleosynthesis

Stellar Oscillation

29 / 40

What is the process by which elements heavier than hydrogen and helium are formed in stars?

Supernova explosion

Cosmic inflation

Stellar nucleosynthesis

30 / 40

What is the name of the theory that suggests the universe underwent a rapid expansion in the early moments after the Big Bang?

Multiverse

Dark Matter

Inflation

31 / 40

What is the name of the proposed substance responsible for the accelerated expansion of the universe?

Dark Energy

Dark Matter

Antimatter

32 / 40

What is the ratio of dark matter to ordinary matter in the universe?

About 1:5

About 10:1

About 5:1

33 / 40

What is the age of the oldest known star in the universe?

5 billion years

10 billion years

Over 13 billion years

34 / 40

What is the term for the study of the origin, structure, and evolution of the universe?

Cosmology

Astronomy

Astrophysics

35 / 40

What is the shape of the universe, according to current cosmological models?

Flat

Toroidal

Spherical

36 / 40

What is the term for the theory that suggests the universe will continue expanding indefinitely?

The Big Rip

The Big Chill

The Big Crunch

37 / 40

What is the cosmic microwave background radiation?

Relic radiation from the Big Bang

Radiation from black holes

Radiation from distant stars

38 / 40

What is the term for the phenomenon where distant galaxies appear to be moving away from us?

Cosmic inflation

Dark Energy

Hubble Expansion

39 / 40

What is the observable universe?

The portion of the universe that is observable from Earth

The portion of the universe we can see

The entire universe

40 / 40

What is the process by which stars convert hydrogen into helium, releasing energy?

Nuclear Fusion

Gravitational Contraction

Nuclear Fission

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adminApril 2, 2024

0 12 1 minute read