Science General · Geography

Astronomy and Celestial Phenomena

1,884 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 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. 

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

Which of the following is not a luminous object

  1. Sun

  2. Moon

  3. Bulb

  4. candle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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

Moon is a non-luminous object because it does not emits it's own light and glows by reflecting the light of the sun.
Sun, Bulb and candle give out or emit their own light and hence, are luminous objects.

Hence, the correct answer is OPTION B.

Multiple choice

The equinox during spring is called _______.

  1. Vernal Equinox

  2. Autumnal Equinox
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The equinox that occurs in the spring is known as the Vernal Equinox. The term vernal comes from the Latin word for spring.

Multiple choice

The term equinox indicates ________

  1. the place where the Earth's two poles meet.

  2. the day that the sun and the moon are on the same line.

  3. the day when sunrise and sunset are 12 hours apart.

  4. the day that the sun is the furthest from the equator.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The word equinox is derived from Latin words meaning equal night. On these days, the sun crosses the celestial equator, resulting in approximately equal lengths of day and night globally.