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Maharashtra State BoardSSC (English Medium) 10th Standard

What is Medium Earth Orbit?

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Question

What is Medium Earth Orbit?

Answer in Brief
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Solution

  1. If the height of the satellite orbit above the earth’s surface is between 2000 km and 35780 km, the orbits are called medium earth orbits.
  2. In these orbits, the satellites complete one revolution in 2 to 24 hours.
  3. The geostationary satellites cannot be used in the study of polar regions.
  4. For this purpose, elliptical medium earth orbits passing over the polar region are used. These orbits are also called as polar orbits.
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Chapter 10: Space Missions - Solve the following Questions

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RELATED QUESTIONS

Why are geostationary satellites not useful for studies of polar regions?


Complete the following table.


Solve the problem.

How much time a satellite in an orbit at height 35780 km above earth's surface would take, if the mass of the earth would have been four times its original mass?


Write the proper name of the orbits of satellites shown in the following figure with their height from the earth’s surface.


Name the first artificial satellite sent by Russia in space.


Calculate the critical velocity of the satellite to be located at 35780 km above the surface of earth.


Distinguish between:

High Earth orbit - Medium Earth orbit.


Observe the figure and write the answers.

  1. Name the outer orbit.
  2. Which satellites revolve in low earth orbits?
  3. Which various orbits are given in the figure?
  4. Give an example of a launch vehicle based on Newton’s third law.

Write functions of Military satellite and Navigational satellite.


Note the relationship between the entries in all the three columns in the table and rewrite the table.

Column-1
(Location)
Column-2
Height from the earth’s surface (km)
Column-3
g (m/s2)
Earth’s surface (average) 8.8 0.225
Mount Everest 36.6 9.81
Maximum height ever reached by manmade balloon 400 9.8
Orbit of a typical weather satellite 35700 9.77
Orbit of communication satellite 0 8.7

Write a note on orbital velocity


Numerical problem.

At an orbital height of 400 km, find the orbital period of the satellite.


The orbital velocity of the satellite depends on its ______.


Geostationary satellites are not useful for studies of the polar region.


The height of medium earth orbit above the surface of the earth is ______.


Complete the Following table.

Sr. no. Type of Satellite The names of Indian Satellite and launcher
(1) Navigational Satellite Satellite: ______
Launcher: ______
(2) Earth Observation Satellite Satellite: ______
Launcher: ______

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