Welcome to the Galaxy Clusters MCQs with Answers. In this post, we are sharing Galaxy Clusters Multiple Choice Questions and Answers in Astronomy section for various competitive exams in Pakistan. Each question offers a chance to enhance your knowledge regarding Galaxy Clusters online MCQs Test.
What is a galaxy cluster?
a) A group of stars within a galaxy
b) A collection of galaxies bound by gravity
c) A star system with multiple planets
d) A single, large galaxy
Which of the following is the largest structure in the universe?
a) Star clusters
b) Solar systems
c) Galaxy clusters
d) Black holes
The largest galaxy cluster near Earth is called:
a) Virgo Cluster
b) Coma Cluster
c) Local Group
d) Hercules Cluster
What is the typical size range of a galaxy cluster?
a) 10 light-years
b) 10,000 light-years
c) 10 million light-years
d) 100 million light-years
What binds the galaxies in a cluster together?
a) Dark energy
b) Magnetic fields
c) Gravity
d) Nuclear forces
What is the most common type of galaxy found in galaxy clusters?
a) Spiral galaxies
b) Elliptical galaxies
c) Irregular galaxies
d) Dwarf galaxies
What is the space between galaxies in a cluster primarily filled with?
a) Dark matter
b) Intergalactic stars
c) Hot gas
d) Cosmic dust
Which galaxy cluster is the Milky Way part of?
a) Virgo Cluster
b) Local Group
c) Coma Cluster
d) Centaurus Cluster
The presence of what unseen substance is inferred from galaxy clusters?
a) Dark matter
b) Neutron stars
c) Black holes
d) Cosmic rays
Which of these methods is used to detect galaxy clusters?
a) X-ray observations
b) Infrared spectroscopy
c) Ultraviolet imaging
d) Radio waves
What is the largest known galaxy cluster?
a) Virgo Cluster
b) Coma Cluster
c) Shapley Supercluster
d) Hercules Cluster
What kind of motion do galaxies in clusters exhibit?
a) They remain stationary
b) Random, chaotic motion
c) Orbital motion around a central galaxy
d) Expansion away from each other
What is the fate of most galaxies in galaxy clusters?
a) They collide and merge
b) They become isolated
c) They lose all their stars
d) They stop moving entirely
The hot gas in galaxy clusters primarily emits which type of radiation?
a) Gamma rays
b) X-rays
c) Infrared
d) Ultraviolet
What role does dark matter play in galaxy clusters?
a) It drives star formation
b) It binds galaxies together with its gravitational pull
c) It causes galaxies to rotate
d) It creates black holes
Which type of galaxy cluster is loosely bound and contains fewer galaxies?
a) Open cluster
b) Poor cluster
c) Rich cluster
d) Gravitational cluster
The Coma Cluster is an example of a:
a) Rich galaxy cluster
b) Poor galaxy cluster
c) Small galaxy group
d) Irregular galaxy cluster
What is the largest structure in a galaxy cluster?
a) Supermassive black hole
b) Central galaxy
c) Dark matter halo
d) Star-forming region
Galaxy clusters are often part of larger structures called:
a) Filaments
b) Nebulae
c) Star clusters
d) Globular clusters
The Local Group is part of which larger structure?
a) Virgo Supercluster
b) Coma Cluster
c) Shapley Supercluster
d) Hydra-Centaurus Supercluster
Which phenomenon is common in galaxy clusters due to close galaxy interactions?
a) Supernova explosions
b) Galactic cannibalism
c) Planetary formation
d) Star quakes
Which force is primarily responsible for the formation of galaxy clusters?
a) Electromagnetic force
b) Gravitational force
c) Weak nuclear force
d) Strong nuclear force
Which galaxy is the largest in the Local Group?
a) Milky Way
b) Andromeda
c) Triangulum
d) Centaurus A
Galaxy clusters often contain which of the following at their centers?
a) Supermassive black holes
b) Neutron stars
c) Open star clusters
d) Binary stars
Galaxy clusters often form part of larger structures known as:
a) Cosmic webs
b) Globular clusters
c) Nebulae
d) Supernova remnants
What is the relationship between galaxy clusters and dark matter?
a) Galaxy clusters are composed entirely of dark matter
b) Dark matter makes up the majority of mass in galaxy clusters
c) Dark matter has no effect on galaxy clusters
d) Galaxy clusters repulse dark matter
Which of the following is NOT a method for studying galaxy clusters?
a) Gravitational lensing
b) X-ray observations
c) Cosmic microwave background analysis
d) Infrared spectroscopy
Which galaxy cluster is one of the most massive known?
a) Abell 2029
b) Fornax Cluster
c) Virgo Cluster
d) Hercules Cluster
What can galaxy clusters tell us about the universe?
a) They reveal the universe’s expansion rate
b) They show how stars form
c) They help determine the total mass of the universe
d) They explain the formation of planets
Which of these is evidence for dark matter in galaxy clusters?
a) The amount of light emitted by galaxies
b) The gravitational effects on visible matter
c) The rate of star formation
d) The motion of planets
Galaxy clusters can be studied using:
a) Only optical telescopes
b) A combination of X-ray, optical, and radio observations
c) Gamma ray bursts
d) Seismic activity
What term describes a grouping of a few galaxies, like the Local Group?
a) Poor cluster
b) Galactic pair
c) Galaxy group
d) Stellar nursery
What happens to the gas between galaxies in a cluster over time?
a) It cools and forms stars
b) It becomes denser and hotter
c) It evaporates
d) It escapes the cluster
The interaction of galaxies in a cluster can lead to:
a) Quasar formation
b) Supermassive black holes shrinking
c) Star formation bursts
d) Galaxies gaining more mass
What feature of galaxy clusters can cause gravitational lensing?
a) The central galaxy
b) The hot gas between galaxies
c) The overall mass of the cluster
d) The dark matter halo
Which cluster contains more than a thousand galaxies?
a) Hercules Cluster
b) Coma Cluster
c) Local Group
d) Sculptor Group
The temperature of the hot gas in galaxy clusters can be up to:
a) 1 million Kelvin
b) 10 million Kelvin
c) 100 million Kelvin
d) 1 billion Kelvin
Galaxy clusters are considered to be:
a) The smallest structures in the universe
b) Large-scale structures of the universe
c) Formed after the first stars
d) Unrelated to cosmic evolution
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