Science General · Geography

Astronomy and Celestial Phenomena

1,839 Questions

This section provides practice questions on astronomy and celestial phenomena, focusing on eclipses, planetary movements, and tides. These concepts are commonly tested in general science sections of various competitive exams. Use this hub to practice questions related to the Earth, Moon, and solar system dynamics.

Solar and lunar eclipsesEquinoxes and solsticesPlanetary movementsOcean tidesCoriolis effectMeteor showers

Astronomy and Celestial Phenomena Questions

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

What type of tide occur when the sun, moon and the earth are in the right angle?

  1. Spring tide

  2. Neap tide

  3. Low tide

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Neap tides occur when the Moon and Sun form a right angle with the Earth. In contrast to spring tides, neap tides are the effect of tidal forces canceling each other.

The result is a smaller difference between high and low tides and is known as a neap tide. Neap tides are especially weak tides. They occur when the gravitational forces of the Moon and the Sun are perpendicular to one another (with respect to the Earth). Neap tides occur during quarter moons.

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

Which of the following reason are responsible for the formation of tides?

  1. Tides are formed as a result of the gravitational pull exerted by the moon.

  2. Tides are formed as a result of the gravitational pull exerted by the sun

  3. Tides are formed as a result of the centrifugal force due to the earth's rotation

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tides are caused by the gravitational pull of the moon, the gravitational pull of the sun, and the centrifugal force generated by the Earth's rotation.

Multiple choice geography tides movements of ocean and sea water circulation of ocean water ocean water movement

Tides which occur in the new moon and full moon days is called ________.

  1. neap tide

  2. spring tide

  3. low tide

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Very high tide is caused when the sun, the moon and the earth are almost in the same line. Such high tides are called spring tides. During new moon and full moon the gravitational forces of sun and the moon work together with combined force and thus this spring tide occurs. 

Multiple choice physics gravitation tides movements of ocean and sea water circulation of ocean water

What are known as Spring Tides?

  1. When sun and moon are aligned causes strong high and low tides

  2. When sun and moon are not aligned causes strong high and low tides

  3. When sun and moon are aligned causes only low tides

  4. When sun and moon are not aligned causes only high tides
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tide with the greatest difference between the high and low tide, 

that occurs just after a new or full moon is a spring tide.

Multiple choice physics gravitation tides movements of ocean and sea water circulation of ocean water

What are known as neap tides?

  1. When sun and moon are not aligned tides are not as high and low

  2. When sun and moon are aligned tides are not as high and low

  3. When sun and moon are not aligned tides are as high and low

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tide where the difference between the high tide and low tide is the least is called a neap tide. Such tides occur when the Sun and the Moon are in a right angled position with the Earth. This happens twice in a month.

Multiple choice geography temperature process of heat transfer in the atmosphere temperature and insolation sun: the ultimate source

Select the correct answer using the code given below:

 Which of these factors are responsible for variation in Insolation?

(a) The angle of inclination of the suns rays
(b) The length of the day
(c) The transparency of the atmosphere.

  1. 1 only

  2. 1 and 2 only

  3. 1 and 2,3

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Factors responsible for variation in insolation during a day, season and a year:

  1. Rotation of Earth
  2. The angle of inclination of Sun’s rays.
  3. Length of day
  4. Transparency of atmosphere
  5. Configuration of land in terms of its aspect.

Earth’s axis has a 66.5 degrees angle with the plane of orbit around the sun leads to variation in insolation at different latitudes.

Area covered by slant rays is more than vertical rays. Energy gets distributed and net energy received per unit area decreases. The slant rays of Solar radiation are absorbed, scattered & diffused more in the deep atmosphere.

Multiple choice evs light and shadow what makes things visible nature and sources of light light travels in straight line

Reflection of the Sun's light from the upper layers of the Earth's atmosphere causes.

  1. day and night

  2. tides

  3. eclipses

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

Twilight on Earth is the illumination of the lower atmosphere when the Sun itself is not directly visible because it is below the horizon. Twilight is produced by sunlight scattering in the upper atmosphere, illuminating the lower atmosphere so that Earth's surface is neither completely lit nor completely dark.

Multiple choice evs light, shadows and images what makes things visible nature and sources of light light travels in straight line

Choose the correct option

  1. Moon is a luminous object because it glows

  2. Moon is a luminous object because it is a source of light

  3. Sun is a luminous object because it is a source of light

  4. Sun is not a luminous object
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Objects that give out or emit light of their own are called as $ \bf{luminous\ objects} $. 
Objects which do not emit light on their own are called  $ \bf{non-luminous} $ objects.

Sun is a luminous object because it a source of light and consequently emits light of it's own.
Moon is a non-luminous object because it does not emits it's own light and glows by reflecting the light of the sun.

Hence, the correct answer is OPTION C.