Physics ยท Science General

Astronomy and Cosmology

4,450 Questions

This topic provides questions on astronomy, cosmology, and the physical universe. It covers subjects like the Hubble sequence, constellations, dark matter, and stellar evolution. These questions help build a strong foundation for general science exam sections.

Galaxies and clustersConstellations and starsStellar evolutionSpace observatories

Astronomy and Cosmology Questions

Multiple choice

What was the name given to the supernova observed by Govind Swarup in 1993 CE?

  1. SN 1054

  2. SN 1987A

  3. SN 1572

  4. SN 1993J
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The supernova observed by Govind Swarup in 1993 CE is known as SN 1993J, also referred to as Supernova 1993J.

Multiple choice

What was the name given to the supernova observed by Ramakrishna Bhat in 2003 CE?

  1. SN 1054

  2. SN 1987A

  3. SN 1572

  4. SN 2003fg
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The supernova observed by Ramakrishna Bhat in 2003 CE is known as SN 2003fg, also referred to as Supernova 2003fg.

Multiple choice

What was the name given to the supernova observed by Dipankar Bhattacharya in 2011 CE?

  1. SN 1054

  2. SN 1987A

  3. SN 1572

  4. SN 2011fe
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The supernova observed by Dipankar Bhattacharya in 2011 CE is known as SN 2011fe, also referred to as Supernova 2011fe.

Multiple choice

What was the name given to the supernova observed by Arvind Parmar in 2014 CE?

  1. SN 1054

  2. SN 1987A

  3. SN 1572

  4. SN 2014J
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The supernova observed by Arvind Parmar in 2014 CE is known as SN 2014J, also referred to as Supernova 2014J.

Multiple choice

What is the cosmic web?

  1. A network of filaments, clusters, and voids in the distribution of galaxies

  2. A network of dark matter halos in the universe

  3. A network of stars and planets in the Milky Way galaxy

  4. A network of black holes in the universe
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The cosmic web is a network of filaments, clusters, and voids in the distribution of galaxies. It is thought to be the result of the gravitational collapse of dark matter and is one of the largest structures in the universe.

Multiple choice

What is the main observational evidence for dark matter in Indian astronomy?

  1. The rotation curves of galaxies

  2. The gravitational lensing of light

  3. The cosmic microwave background

  4. The abundance of light elements
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main observational evidence for dark matter in Indian astronomy is the rotation curves of galaxies.

Multiple choice

What is the shape of the rotation curves of galaxies?

  1. Flat

  2. Rising

  3. Falling

  4. Irregular
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The rotation curves of galaxies are flat, meaning that the velocity of stars in galaxies does not decrease with distance from the center of the galaxy.

Multiple choice

What does the flatness of the rotation curves of galaxies imply?

  1. There is a large amount of dark matter in galaxies.

  2. There is a small amount of dark matter in galaxies.

  3. There is no dark matter in galaxies.

  4. The laws of gravity are incorrect.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The flatness of the rotation curves of galaxies implies that there is a large amount of dark matter in galaxies.

Multiple choice

What does the gravitational lensing of light imply?

  1. There is a large amount of dark matter in the universe.

  2. There is a small amount of dark matter in the universe.

  3. There is no dark matter in the universe.

  4. The laws of gravity are incorrect.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The gravitational lensing of light implies that there is a large amount of dark matter in the universe.

Multiple choice

What does the abundance of light elements imply?

  1. There is a large amount of dark matter in the universe.

  2. There is a small amount of dark matter in the universe.

  3. There is no dark matter in the universe.

  4. The laws of gravity are incorrect.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The abundance of light elements implies that there is a large amount of dark matter in the universe.

Multiple choice

The NCF includes astronomy as a:

  1. Core subject

  2. Elective subject

  3. Optional subject

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The NCF includes astronomy as an elective subject at the secondary school level.

Multiple choice

What is the name of the closest star to our solar system?

  1. Proxima Centauri

  2. Alpha Centauri A

  3. Alpha Centauri B

  4. Sirius
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Proxima Centauri is the closest star to our solar system. It is a red dwarf star located about 4.2 light-years away.

Multiple choice

What is the name of the galaxy that contains our solar system?

  1. Milky Way

  2. Andromeda

  3. Triangulum

  4. Messier 81
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Our solar system is located in the Milky Way galaxy. The Milky Way is a barred spiral galaxy with a diameter of about 100,000 light-years.

Multiple choice

What is the name of the largest structure in the universe that has been observed?

  1. Great Wall

  2. Sloan Great Wall

  3. Hercules-Corona Borealis Great Wall

  4. U1.11
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

U1.11 is the largest structure in the universe that has been observed. It is a gigantic filament of galaxies that spans over 2 billion light-years.

Multiple choice

Which experiment provided evidence for the existence of dark matter?

  1. Michelson-Morley Experiment

  2. Stern-Gerlach Experiment

  3. Millikan Oil Drop Experiment

  4. Galaxy Rotation Curve Experiment
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Galaxy Rotation Curve Experiment provided evidence for the existence of dark matter, a mysterious substance that does not emit or reflect light.