Physics · 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

When can Milky Way galaxy be seen?

  1. <span style="font-size:" class="Apple-style-span">On new moon day

  2. On a full moon night

  3. In a dark night

  4. Any time of day and night
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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Multiple choice

How does a comet look like through a telescope?

  1. It has bright head and long tail.

  2. It has dull head and long bright tail.

  3. It has bright head and short tail.

  4. It has dull head and short bright tail.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It has bright head and long tail.

Multiple choice

Which of the following could replace ‘greatly’ as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.
A star is a heavenly (1) body which shines by its own light. Planets, as you know, shine only by light reflected (2) from the sun. The planets shine with a steady (3) light and the stars twinkle. This twinkling is caused by desturbances (4) in the air between the star and the earth. The unsteady air bends the light from the star, which then appears to tremble (5). Stars differ greatly (6) in size, density and temperature. At one end (7), there are stars called “red super-giants,” which are many times (8) larger than our sun (which is also a star). At the other end, there are stars called “white dwarfs,” some of which are about the size of our earth.

  1. truly

  2. expectedly

  3. very much

  4. somewhat
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

‘Greatly’ here means to a large extent. Therefore, the correct option is ‘very much’.

Multiple choice

Which of the following could replace 'heavenly' as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.
A star is a heavenly (1) body which shines by its own light. Planets, as you know, shine only by light reflected (2) from the sun. The planets shine with a steady (3) light and the stars twinkle. This twinkling is caused by desturbances (4) in the air between the star and the earth. The unsteady air bends the light from the star, which then appears to tremble (5). Stars differ greatly (6) in size, density and temperature. At one end (7), there are stars called “red super-giants,” which are many times (8) larger than our sun (which is also a star). At the other end, there are stars called “white dwarfs,” some of which are about the size of our earth.

  1. glittery

  2. beautiful

  3. divine

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

The is about the natural objects found in the sky, which are also known as 'celestial bodies'.

Multiple choice

Which of the following is the correct spelling of 'desturbances'?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.
A star is a heavenly (1) body which shines by its own light. Planets, as you know, shine only by light reflected (2) from the sun. The planets shine with a steady (3) light and the stars twinkle. This twinkling is caused by desturbances (4) in the air between the star and the earth. The unsteady air bends the light from the star, which then appears to tremble (5). Stars differ greatly (6) in size, density and temperature. At one end (7), there are stars called “red super-giants,” which are many times (8) larger than our sun (which is also a star). At the other end, there are stars called “white dwarfs,” some of which are about the size of our earth.

  1. desturbancis

  2. distarbences

  3. desturbences

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

The correct spellings are 'disturbances'.

Multiple choice

Which of the following could replace 'many times' as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.
A star is a heavenly (1) body which shines by its own light. Planets, as you know, shine only by light reflected (2) from the sun. The planets shine with a steady (3) light and the stars twinkle. This twinkling is caused by desturbances (4) in the air between the star and the earth. The unsteady air bends the light from the star, which then appears to tremble (5). Stars differ greatly (6) in size, density and temperature. At one end (7), there are stars called “red super-giants,” which are many times (8) larger than our sun (which is also a star). At the other end, there are stars called “white dwarfs,” some of which are about the size of our earth.

  1. repeatedly

  2. much

  3. over and over

  4. time and again
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'Many times' can be replaced by 'much'.