Geography · Physics

Geodesy and Celestial Mechanics

984 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 geography world of diversities elements of weather and climate :rainfall and air pressure diversified world environmental regions (zones)

The International Date Line makes slight deviation from 180$^o$ meridian so that it __________________________.

  1. divides the land masses under the same administration

  2. does not divide the Bering strait

  3. does not divide a group of islands under the same administration

  4. divides the Pacific Ocean into two equal halves
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The International Date Line zigzags away from the 180 degree meridian to avoid dividing island groups or nations into different calendar days, ensuring administrative and economic consistency for local populations.

Multiple choice physics air, winds and cyclones wind and rain example of some natural phenomena uneven heating of earth the concept of bernoulli's principle

Which area on the Earth receives maximum sunlight ?

  1. Polar region

  2. Equatorial region

  3. Along the latitude of Tropic of Cancer

  4. Along the latitude of Tropic of Capricorn
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The Earth's shape is spherical. This causes the Sun's rays to strike the Earth's surface at different angles, creating variances in temperatures on Earth. The equator receives the most direct sunlight because sunlight arrives at a perpendicular (90 degrees) angle to the Earth.
Multiple choice physics constellations and galaxies light year evolution and end stages of stars in the world of stars

One light year is equal to

  1. 3.26 parsec

  2. 3.26km

  3. 3.26 A.U.
  4. $\displaystyle \frac{1}{3.26}$ parsec
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

One light year is the distance travelled by the light in one year. So,

$1$Parse $=3.08\times { 10 }^{ 16 }$m
$1$ light year$9.46\times { 10 }^{ 15 }$m
So
$1$ light year $=9.46\times { 10 }^{ 15 }$ parsec
                       $=3.08\times { 10 }^{ 16 }$
$1$ light year $=0.306$ parsec
                     $=\cfrac { 1 }{ 3.26 } $ parsec

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

Choose the correct option to complete the statements given below: 
The globe and the earth are different in _______.

  1. shape

  2. size

  3. continents and oceans

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

A globe is a miniature form of the earth, which represents distances, directions, continents, oceans, countries, etc. A globe is often misconstrued with a map, which diagrammatically represents the earth's surface or a part thereof, based on scale.

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

What is the shape of Earth?

  1. Circle

  2. Square

  3. Sphere

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

The shape of the earth seems like a sphere, although it is not perfectly spherical. It is rather an oblate spheroid because of the earth's diurnal rotation, i.e, the earth is slightly flattened at its polar ends and bulged out at the equatorial part.

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

The geometric form of the earth is approximately that of __________________.

  1. a sphere

  2. an oblate spheroid

  3. a prolate spheroid

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

The oblate spheroid, or oblate ellipsoid, is an ellipsoid of revolution obtained by rotating an ellipse about its shorter axis. It is the regular geometric shape that most nearly approximates the shape of the Earth. A spheroid describing the figure of the Earth or other celestial body is called a reference ellipsoid.

Multiple choice physics life cycle of stars evolution and end stages of stars the stars stars

Match the columns

A B
(1) Speed of light (a) 4.3 light years away from earth
(2) Light year                (b) 300,000 km/s
(3) Sun (c) Nearest star
(4) Alpha Centauri (d) distance travelled by light in one year
(e) 18 light minutes away from the Earth

  1. 1-d 2-d, 3-a, 4-e

  2. 1-a, 2-b, 3-c, 4-e

  3. 1-d, 2-b, 3-e, 4-c

  4. 1-b, 2-d, 3-c, 4-a
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The speed of light is 300,000 km/s.
Light year is the distance travelled by light in one year.
Sun is the nearest star from Earth.
Alpha Centauri is 4.3 light years away from Earth.

Multiple choice maths numbers and place value many forms of ten thousand standard form of numbers number names, numerals and place values

The distance of the earth from the sun is 149,000,000 km. In scientific notation the distance is:

  1. $\displaystyle 149\times 10^{6}$ km
  2. $\displaystyle 14.9\times 10^{7}$ km
  3. $\displaystyle 1.49\times 10^{8}$ km
  4. $\displaystyle 0.149\times 10^{9}$ km
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

$\displaystyle 149,000,000 km=149\times1000000=1.49\times100000000=1.49\times 10^{8}km$

Multiple choice geography earthquakes and volcanoes volcanism types and features of earthquakes and volcanoes movement of the earth's plates

Which of the following is the farthest from the centre of the earth?

  1. South Pole

  2. Antarctic Circle

  3. Tropic of Capricorn

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

The Earth is an oblate spheroid, meaning it bulges at the equator and is flattened at the poles. Therefore, the equator is the point on the surface that is farthest from the center of the Earth.

Multiple choice origin of universe universe and organic evolution biology

The sphere of living matter found on the surface of earth comprises.

  1. Lithosphere

  2. Hydrosphere

  3. Atmosphere

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

The biosphere is one of the four layers that surround the earth along with the lithosphere, hydrosphere, and atmosphere. It is the place on earth's surface where life is found. Thus the correct answer is option D.

Multiple choice origin of universe universe and organic evolution biology

The sphere of living matter found on the surface of earth comprises

  1. Lithosphere

  2. Hydrosphere

  3. Atmosphere

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

The biosphere is the global sum of all ecosystems, representing the zone of life on Earth.