Tag: galaxies

Questions Related to galaxies

Milky way is _____ in shape.

physics sky vision types of galaxies galaxies constellations

  1. Elliptical

  2. Spiral

  3. Regular

  4. Circular

Show answer
Correct Option: B
Explanation:

Ans: Spiral 

The nearest galaxy to the Milky Way is _________.

physics sky vision types of galaxies galaxies constellations

  1. Fornax galaxy

  2. Samprero galaxy

  3. Andromeda galaxy

  4. Pinwheel galaxy

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Correct Option: C

The stars in space are _________________.

physics sky vision types of galaxies galaxies constellations

  1. uniformly spread out.

  2. distributed completely at random

  3. mostly contained within widely separated galaxies

  4. chiefly in the Milky Way

Show answer
Correct Option: C
Explanation:

Stars are not scattered randomly through space they are gathered together into vast groups also known as galaxies.

Answer is $C$

The Milky Way is ________________.

physics sky vision types of galaxies galaxies constellations

  1. a gas cloud in the solar system

  2. a gas cloud in the galaxy of which the sun is a member

  3. the galaxy of which the sun is a member

  4. a nearby galaxy

Show answer
Correct Option: C
Explanation:

Milky way is the galaxy which contains as our solar system hence it also contains sun.

Answer is $C$

Milky Way galaxy is in cluster of galaxies which is also known as:

physics sky vision types of galaxies galaxies constellations

  1. local group

  2. big bang group

  3. temperate group

  4. none of the above

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Correct Option: A
Explanation:

The milk way galaxy cluster is also known as the local supercluster as local group.


The visible light spectrum of a typical star like our Sun shows:

physics sky vision types of galaxies galaxies constellations

  1. bright emission lines

  2. shows all of the other answers depending on the season on Earth

  3. no spectral lines at all

  4. dark absorption lines

Show answer
Correct Option: D
Explanation:

They show dark absorption light which tells us about the temperature of star like oxide lines are there only in cool stars while hot stars show helium lines.

Why is the Sun important for us?

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. It is the main source of light and heat.

  2. It is the source of energy.

  3. Its gravitational force keeps all planets and other heavenly bodies in place.

  4. All of the above.

Show answer
Correct Option: D
Explanation:

Sun is very important to us as it is the main source of light and heat, i.e, the main source of energy. Besides, its gravitational force keeps all planets and other heavenly bodies in place.

The highest number of atoms in the Sun are of:

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. hydrogen

  2. helium

  3. oxygen

  4. nitrogen

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Correct Option: A
Explanation:

Percentage of total number of atoms:
Hydrogen: $91.2$
Helium: $8.7$
Oxygen: $0.078$
Nitrogen: $0.0088$

Sun is a/an:

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. Star

  2. Planet

  3. Galaxy

  4. Asteroid

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Correct Option: A
Explanation:

Sun falls in the classification of stars. 

It is the center of solar system.

Why does sun appear larger than other stars to us?

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. It is larger than other stars.

  2. It is farther than other stars.

  3. It is closer than other stars.

  4. It is faster than other stars.

Show answer
Correct Option: C
Explanation:

Sun is much closer to us as compared to other stars. Hence, it subtends larger angle at eyes compared to other stars and appear larger. Note that many stars are much larger than sun in size.