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 effects of light eclipses elementary ideas of astronomy shadow formation and optical medium

Which eclipse is known when the Moon travels through the faint penumbral portion of the Earths shadow.?

  1. Total

  2. Partial

  3. Penumbral

  4. Hybrid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Earth cast a shadow on the Moon in a lunar eclipse. Earth's shadow are of 2 types: umbra and penumbra. The darkest or the total shadow is the umbra while the partial shadow is the penumbra. Penumbral eclipse happens when Moon passes through the penumbra.

Multiple choice physics constellations and galaxies light year evolution and end stages of stars in the world of stars

What is known as Astronomical Unit (AU)?

  1. Average distance between Earth and Sun

  2. Average distance between Sun and Moon

  3. Average distance between Moon and Earth

  4. Average distance between Earth and Star
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Average distance from the centre of the Earth to the centre of the Sun forms the astronomical unit (AU). It equals to around 149.6 million kilometres.

Multiple choice physics constellations and galaxies light year evolution and end stages of stars in the world of stars

A star is seen to be rising on the eastern horizon at $23:00$ hrs. At what time the star will rise 2 days later

  1. $00:00$ hrs
  2. $21:40$ hrs
  3. $23:20$ hrs
  4. $23:00$ hrs
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The stores appear to be static when seen from earth thus they only appear to be moving due to earth's rotation about its axis. It takes exactly $24$ hors to complete one rotation. So after days $(2\times 24\ hrs)$, the far will be seen rising at the same time
$(i.e., 23:00\ hrs)$

Multiple choice geography the earth and the graticule general idea about earth space around the earth is the earth round?

What influences the duration of the day and night as one moves from south to north?

  1. Longitudinal extent

  2. Latitudinal extent

  3. Tropic of Cancer

  4. Tropic of Capricorn
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • The latitudinal extent influences the duration of the day and night as one moves from south to north.
  • The length of day and night depends on whether the place is receiving direct sun rays or slanting rays.
  • Places on the equator receive the direct rays of the sun all year round and hence have equal days and night.
  • Whereas for places north and south equator, the duration varies according to seasons due to the tilt of the earth.