Tag: the big bang and the early development of the universe

Questions Related to the big bang and the early development of the universe

When the flow parameters of any given instant remain same at every point, then flow is said to be

  1. laminar

  2. steady state

  3. turbulent

  4. quasistatic


Correct Option: B
Explanation:

When the flow parameters (like pressure, velocity etc) doesn't change w.r.t time i.e remains constant through out the time period, then this state is called as STEADY STATE.

For an astronaut in a spaceship, the sky appears

  1. white

  2. black

  3. green

  4. blue


Correct Option: B

The Hubble Deep Field is an image of the sky taken with a very along exposure, using the Hubble Space Telescope. Almost all of the $5000$ objects seen in that picture are?

  1. Starts that are in our own Galaxy.

  2. Dirt on the lens of the telescope.

  3. Galaxies

  4. Distant planets.


Correct Option: C

Which of the following is NOT a member of the solar system ? 

  1. An asteroid

  2. A satellite

  3. A constellation

  4. A comet


Correct Option: C
Explanation:

A constellation is not a member of the solar system it is a group of stars that form recognisable shapes. 

As a star like our sun is running out of fuel in its core it begins to bloat into a

  1. nebula

  2. white dwarf

  3. quasar

  4. red giant


Correct Option: D
Fill in the blanks. 
In 1609, _______ designed a telescope.
  1. Newton

  2. Galileo

  3. Einstein

  4. Archimedes


Correct Option: B
Explanation:

In 1609, Galileo designed a telescope to view the celestial bodies.

He was the first man who did effective work on celestial objects.

The rough estimation of visible matter in the universe is:

  1. $70\%$

  2. $80\%$

  3. $90\%$

  4. $10\%$


Correct Option: D
Explanation:

Dark matter can't be seen, but its presence has been revealed by observing universe. It has been estimated that more than $90\%$ of matter is invisible in universe. So, what is visible, is only $10\%$ of the universe.

The universe consists of:

  1. Galaxies

  2. Planets

  3. Stars

  4. All of the above


Correct Option: D
Explanation:

The universe is unimaginably and infinitely big commonly defined as totality of everything that exists. It consists of galaxies, planets, stars, asteroids, comets, meteors etc.

Universe is:

  1. a dialect between two people

  2. the study of light propagation between Sun and the Earth

  3. the vast surrounding space which includes everything that exists from the Earth to the most distant parts of space that one can possibly see

  4. the solar system


Correct Option: C
Explanation:

The universe is the vast surrounding space which includes everything that exists from the Earth to the most distant parts of space that one can possibly see.

Astronomers study about: 

  1. celestial bodies

  2. microorganisms

  3. nuclear reactions

  4. electricity


Correct Option: A
Explanation:

Astronomer are scientists, who study the stars and planets using scientific equipments like telescopes.

They observe and study celestial bodies.