Tag: origin of universe

Questions Related to origin of universe

The wave length of light received from a distant galaxy is 0.5 % greater than that received from an identical source on the earth.the galaxy:

  1. Is stationary relative to the earth.

  2. Is moving towards the earth with velocity of light

  3. Is moving away from the earth with light velocity

  4. Is moving away from the earth with velocity $ 1.5 \times 10^9 m/s $


Correct Option: D

It is believed that the Universe is expanding and hence the distant stars are receding from us. Light from such a star will show

  1. Shift in frequency towards longer wavelength

  2. Shift in frequency towards shorter wavelength

  3. No shift in frequency but a decrease in Intensity

  4. A shift in frequency sometimes towards longer
    and sometimes towards shorter wavelength


Correct Option: A

The vast surrounding space is called

  1. Galaxy

  2. Universe

  3. Planet

  4. None of these


Correct Option: B
Explanation:

Universe is the vast surrounding space.

The radius of the solar system is ________.

  1. $39.5$ light years

  2. $39.5$ parsec

  3. $39.5$AU

  4. none of these


Correct Option: C
Explanation:

Ans: 39.5AU

Which of the following element(s) is not essential for life to originate and flourish on a planet?

  1. carbon

  2. hydrogen

  3. oxygen

  4. uranium


Correct Option: D
Explanation:

Ans: Uranium

Comets that return to view at regular intervals are called

  1. regular comets

  2. visiting comets

  3. periodic comets

  4. none of these


Correct Option: C

Our sun is a ___________.

  1. white dwarf

  2. red dwarf

  3. orange dwarf

  4. yellow dwarf


Correct Option: D

The large bright stars with a cool surface of ${2000}^{o}C$ to ${3000}^{o}C$, formed during the later stages of the evolution of a star like the sun as it runs out of ${H} {2}$ fuel at its center are __________.

  1. red dwarf

  2. white dwarf

  3. red giants

  4. brown dwarf


Correct Option: C
Explanation:

Large bright stars with a cool surface of 2000oC to 3000oC, formed during the later stages of the evolution of a star like the sun as it runs out of H2 fuel at its center are Red giants

Ans: Red giants

Horse head Nebula in Orion are dense clouds of molecular hydrogen which partially or completely absorb the light from the stars behind them. These are called ___________.

  1. planetary nebula

  2. dark nebula

  3. reflection nebula

  4. emission nebula


Correct Option: B
Explanation:

Horse head nebula are called dark nebula.

Ans: Dark Nebula

Orion nebula glows brightly because the gas in it is energised by the stars that have already formed within it, such types of nebula are called as ___________.

  1. planetary nebula

  2. dark nebula

  3. reflection nebula

  4. emission nebula


Correct Option: D
Explanation:

Ans: Emission nebula