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 zoology biodiversity and conservation hotspots and methods of conservation biodiversity: conservation conservation of biodiversity basis of classification in animals basis of the classification of animals criteria for animal classification five kingdoms of living organisms biodiversity and need of classification biodiversity and classification

During the course of a year, the sun will disappear from view near the North Pole on what date?

  1. June 21

  2. September 23

  3. December 23

  4. January 1
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

At the North Pole, the sun remains above the horizon for six months (from the spring equinox to the autumn equinox) and below the horizon for the other six months. The sun disappears after the autumn equinox, which occurs around September 23.

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

Comets that return to view at regular intervals are called

  1. regular comets

  2. visiting comets

  3. periodic comets

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

Comets that orbit the sun in predictable, repeating paths are defined as periodic comets. These objects return to the inner solar system at regular intervals.

Multiple choice social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

State whether true or false :
Comets are very small-sized celestial bodies that revolve around the sun in highly elliptical orbits.

  1. True

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

Comets are indeed icy, small celestial bodies that follow highly elliptical orbits around the Sun. When they approach the Sun, they develop a tail due to solar radiation.

Multiple choice geography inside our earth the earth's structure structure of the earth our world components of earth earth and structure

Which of the following phenomenon gives an evidence for the spherical shape of the earth?

  1. Solar eclipse

  2. Lunar eclipse

  3. Revolution

  4. Rotation of Earth
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

During a lunar eclipse, the Earth casts a shadow on the moon. The circular shape of this shadow provides evidence that the Earth is spherical.

Multiple choice geography australia - location, political divisions and physical features australia australia australia - geographical features

Phenomenon in which glow is observed in sky at night called Aurora Australia is also classified as _______________.

  1. Southern lights

  2. Northern lights

  3. Western light

  4. Eastern light
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • Aurora Australis is also known as southern lights or southern polar lights.
  • This is seen in southern hemisphere and best place to see is Antarctica.
  • Aurora Australis and Borealis are counterparts of each other formed in southern and northern hemispheres respectively.
  • Aurora is formed when charged particles from sun penetrate during a solar flare into earth’s magnetic field and collide with molecules in our atmosphere. These collisions result in countless little bursts of light.
  • When charged particles collide with oxygen, red and green aurora is produced while nitrogen produces pink and purple colours.

Multiple choice geography australia - location, political divisions and physical features australia australia australia - geographical features

What does the word Uluru means?

  1. A place where sun sets

  2. A place where sunlight and moon light meets

  3. A place where the wind moans between dawn and dusk

  4. A place where they worship
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Uluru is a sacred site for the Anangu people. While often associated with various legends, the specific cultural interpretation provided in option C reflects the poetic and spiritual significance attributed to the site.

Multiple choice physics the human eye and the colourful world human eye and its working what is inside our eyes? human eye and defects of vision

There is a pattern observed in the number of sum spots appearing every year called as

  1. solar cycle

  2. sun spot cycle

  3. solar period

  4. solar spot cycle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sun spot cycle is a pattern observed in number of sun spots appearing every year due to revolution of earth arround sun with moon revolving earth.

Multiple choice physics rotational motion of a rigid body and moment of inertia angular momentum (l) and conservation of angular momentum angular momentum in case of rotation about a fixed axis law of conservation of angular momentum

When tall buildings are constructed on earth, the duration of day night 

  1. slightly increases

  2. slightly decreases

  3. has no change

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

Moment of inertia $I$ inerease. Therefore, $\omega $ decreases (as $I \omega = $ constant). Hence time period increases
$\displaystyle \left( as: T=\frac{2 \pi}{\omega} \right) $

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Terrestrial life would become impossible with

  1. Disappearance of moon
  2. Decrease in mean annual temperature by $10^o C$

  3. Change in orbit of earth

  4. Change in atmosphere permitting all solar radiations to reach lithosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The total amount of solar radiation reaching to the lithosphere do not enter the surface of the earth as it would heat up the earth making it unsuitable for any life. Therefore, 35% of the solar radiation are reflected back to the space.

So, the correct answer is option D.

Multiple choice physics sound: production of sound oscillation - amplitude, time period and frequency of oscillation time period, frequency and amplitude of sound oscillatory and periodic motion

Which of the following is an example of oscillatory motion? 

  1. Heart beat of a persion

  2. Motion of earth around the sun

  3. Motion of Hally's comet around the sun

  4. Oscillations of a simple pendulam
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Oscillation of a simple pendulum is a simple harmonic motion.