Tag: solar system and its planets

Questions Related to solar system and its planets

Solar flares are associated with.

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

  1. Intense magnetic field

  2. Solar eclipse

  3. Lunar eclipse

  4. Nuclear fission reaction

Show answer
Correct Option: A
Explanation:

Solar flares are associated with intense magnetic field. A solar flare occurs when magnetic energy that has built up in the solar atmosphere is suddenly released.

Which is the part of sun where the energy is transported from superhot interior to cold outer layers by photons?

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

  1. Core

  2. Radiative Zone

  3. Convective zone

  4. None

Show answer
Correct Option: B
Explanation:

Radiative zone lies between the core and the convective zone. In radiative zone, energy resulted from the nuclear fusion in the core travels upwards by photons.

Sunspots on the photosphere are due to.

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

  1. Eclipses caused by planets

  2. Comparatively cooler regions

  3. Granulation's

  4. Cloudy weather on the earth

Show answer
Correct Option: B
Explanation:

Sunspots are temporary phenomenon on the sun photosphere that appears as spots darker than the surrounding area.

They are regions of reduced surface temperature. 
Answer is $B$

The reason for enormous energy output of the sun is.

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

  1. Combustion of hydrogen

  2. Formation of helium

  3. Thermo nuclear fusing reaction

  4. Electromagnetic field.

Show answer
Correct Option: B,C
Explanation:

Reason for enormous energy output of sun is the fusion reaction

$H + H \longrightarrow He + Energy$
Answer is $B$ and $C$