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Question
A group of students from COEP Pune sent a small satellite _______ through ISRO in 2016.
Options
Luna 6
Apollo 6
Swayam
Param
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Solution
A group of students from COEP Pune sent a small satellite Swayam through ISRO in 2016.
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Name the first artificial satellite sent by Russia in space.
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Calculate the critical velocity of the satellite to be located at 35780 km above the surface of earth.
Observe the figure and write the answers.

- Name the outer orbit.
- Which satellites revolve in low earth orbits?
- Which various orbits are given in the figure?
- Give an example of a launch vehicle based on Newton’s third law.
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 |
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| Orbit of communication satellite | 0 | 8.7 |
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How is a satellite maintained in nearly circular orbit?
Numerical problem.
At an orbital height of 400 km, find the orbital period of the satellite.
Write down the formula of orbital velocity.
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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: ______ |
The orbit of a satellite is exactly 35780 km above the earth's surface and its tangential velocity is 3.08 km/s.
How much time the satellite will take to complete one revolution around the earth?
(Radius of earth = 6400 km.)
