Geography · Physics

Geodesy and Celestial Mechanics

1,049 Questions

Geodesy and celestial mechanics questions explore Earth measurements, great circles, and planetary motions. These concepts form a crucial part of physical geography and astronomy in competitive exams. Practice these questions to grasp longitudinal and latitudinal calculations.

Longitude and latitude calculationsGreat circle conceptEarths axial precessionLagrangian pointsAtmosphere boundary

Geodesy and Celestial Mechanics Questions

Multiple choice

The longitude at 0° is called

  1. Prime Meridian

  2. Equator

  3. Tropic of Cancer

  4. Tropic of Capricorn
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Prime Meridian is the longitude line defined as 0 degrees, passing through Greenwich, England.

Multiple choice

The latitude at 0° is called

  1. Equator

  2. Prime Meridian

  3. Greenwich Meridian

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

The Equator is the line of 0 degrees latitude, which divides the Earth into the Northern and Southern Hemispheres.

Multiple choice

The difference in the duration of day and night increases as one moves from

  1. east and west of the prime meridian

  2. west to east

  3. poles to equator

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

The difference in the duration of day and night is caused by the tilt of the Earth's axis. This difference is zero at the equator and increases as one moves toward the poles, where the variation is most extreme.

Multiple choice

Earth rotates on its axis from

  1. east to west

  2. west to east

  3. north to south

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

The Earth rotates on its axis from west to east, which is why the sun appears to rise in the east.

Multiple choice

The International Date Line is the ______.Longitude.

  1. 180°

  2. 0°

  3. 10°

  4. 110°
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The International Date Line is an imaginary line on the surface of the Earth that runs from the North to the South Pole and demarcates one calendar day from the next, located at 180 degrees longitude.

Multiple choice

Which of the following has not helped in bridging the spatial gap?

Directions: Read the following passage and answer the question on the basis of the content of the passage.

The Universe is open and it is ceaselessly expanding. Space means the whole universe, including the earth, while outer space begins where the earth's atmosphere ends and extends in all directions. The study of space and of outer space is, of course, not the common man's cup of tea, but the interests of mankind are deeply involved when space is put to certain uses, not all of which are peaceful. The use of space for civilian flights within a country and for the worldwide air services has brought mankind and continents closer than they ever were. In a matter of hours, a person can fly from one continent to another; the communications gap has been reduced by what seem to be fantastic means through space.

  1. Domestic flights

  2. Naval aircraft

  3. Good use of space

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

It says 'In a matter of hours, a person can fly from one continent to another' which means people can travel in a short span from one country to another. Naval aircraft means fighter or war planes used by the navy of a country. They are not used as public transport.

Multiple choice

If the equator divides the earth vertically in two equal parts, which line does it horizontally

  1. Anti Meridian

  2. Prime Meridian

  3. Upper Hemisphere

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

The Equator divides the Earth into Northern and Southern Hemispheres (horizontally), while the Prime Meridian divides it into Eastern and Western Hemispheres (vertically). The question phrasing is slightly confusing but points to the Prime Meridian.