Tag: option d: astrophysics

Questions Related to option d: astrophysics

The full moon night is called:

evs option d: astrophysics moon the moon's path in the sky the moon

  1. Purnima

  2. Amavasya

  3. Both (A) and (B)

  4. None of them

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Correct Option: A
Explanation:

The full moon night is called purnima as well new moon is called amavasya.

sky appears blue because of 

evs option d: astrophysics moon the moon's path in the sky the moon

  1. Total Internal

  2. Scattering

  3. Refraction

  4. Total internal reflection

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Correct Option: B
Explanation:

Sky appears blue because of Scattering.Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.


Therefore, B is correct option.

For an astronaut in a spaceship, the sky appears

physics option d: astrophysics the big bang and the early development of the universe origin of universe evolution of the universe

  1. white

  2. black

  3. green

  4. blue

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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?

physics option d: astrophysics the big bang and the early development of the universe origin of universe evolution of the universe

  1. Starts that are in our own Galaxy.

  2. Dirt on the lens of the telescope.

  3. Galaxies

  4. Distant planets.

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Correct Option: C

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

social science option d: astrophysics the big bang and the early development of the universe origin of universe evolution of the universe

  1. An asteroid

  2. A satellite

  3. A constellation

  4. A comet

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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

social science option d: astrophysics the big bang and the early development of the universe origin of universe evolution of the universe

  1. nebula

  2. white dwarf

  3. quasar

  4. red giant

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Correct Option: D
Fill in the blanks. 
In 1609, _______ designed a telescope.
social science option d: astrophysics the big bang and the early development of the universe origin of universe evolution of the universe

  1. Newton

  2. Galileo

  3. Einstein

  4. Archimedes

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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:

social science option d: astrophysics the big bang and the early development of the universe origin of universe evolution of the universe

  1. $70\%$

  2. $80\%$

  3. $90\%$

  4. $10\%$

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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:

social science option d: astrophysics the big bang and the early development of the universe origin of universe evolution of the universe

  1. Galaxies

  2. Planets

  3. Stars

  4. All of the above

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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.