Tag: galaxies

Questions Related to galaxies


What is the diameter determined of sun?

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

  1. 109 Earth diameters

  2. 109 Mars diameters

  3. 109 Venus diameters

  4. 109 Jupiter diameters

Show answer
Correct Option: A
Explanation:

The diameter of the Sun is 1.3914 million km.

Which is equal to 109 Earths diameter.

The dark areas on the sun produced by the most intense magnetic helds are called.

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

  1. Plages

  2. Sun spots

  3. Sundog

  4. Prominences

Show answer
Correct Option: B
Explanation:

The dark areas on sun produced by most intense magnetic helds are called sun spots.

The following is (are) true about Sun.

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

  1. It is made up of gases

  2. It has its own heat and light

  3. Sun is a star

  4. All of the above

Show answer
Correct Option: D
Explanation:

The sun is a big ball of gas and plasma. Most of the gas 91 percent is hydrogen. It is converted into energy in the sun's core. The energy moves outward through the interior layers, into the sun's atmosphere, and is released into the solar system as heat and light.

How much part of Earth is covered by land? 

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

  1. 26%

  2. 27%

  3. 28%

  4. 29%

Show answer
Correct Option: D
Explanation:

29% of Earth is covered by land. 

71% of the earth's surface is covered with water. 
And most of it is covered by oceans.

Dark patches present in the photosphere of the sun are called

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

  1. sun spots

  2. prominences

  3. rings

  4. fluorescence

Show answer
Correct Option: A
Explanation:

Sunspots are temporary phenomena on the suns photosphere that appear as spots darker than the surrounding areas.

Dark irregular patches seen on the surface of the sun are called ___________.

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

  1. sun spots

  2. solar prominences

  3. rings

  4. solar flares

Show answer
Correct Option: A
Explanation:

Ans: Sun spots 

The light from the sun to reach the surface of the earth takes about _____.

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

  1. $8$ min

  2. $8.3$ min

  3. $6$ min

  4. $7$ min

Show answer
Correct Option: B
Explanation:

The light from the sun to reach the surface of the earth takes about 8 min 20 sec.

Ans: 8 min 20 sec

The pearly white crown surrounding the sun visible during the total eclipses 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. its chromosphere

  2. photosphere

  3. corona

  4. heliosphere

Show answer
Correct Option: C
Explanation:

Pearly white crown surrounding the sun visible during the total eclipse of sun is corona.

Ans: corona

Continuous observations of sun spots formation has revealed that the region or band of sun spots first form at mid-latitudes, widen and then move

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

  1. towards poles

  2. sideward

  3. towards the equator

  4. upper latitudes

Show answer
Correct Option: C
Explanation:

Sun spots form at mid latitudes and move towards equator.

Ans: towards the equator 

It was observed that there was a pattern to the increase and decrease in the number of sun spots forming a cycle with a period of

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

  1. $11$ years

  2. $22$ years

  3. $33$ years

  4. $27$ years

Show answer
Correct Option: A
Explanation:

Number of sun spots increase and decrease in a span of 11 years.

Ans: 11 years