Advertisements
Advertisements
प्रश्न
Calculate the time taken by a satellite for one revolution revolving at a height of 6400 km above the earth's surface with a velocity of 5.6 km/s.
Advertisements
उत्तर
Given: Height of satellite (h) = 6400 km = 6.4 × 106 m
Velocity of satellite (Vc) = 5.6 km/s = 5.6 × 103 m/s
To find: Time taken for one revolution (T)
Formula: T = `(2π("R" + "h"))/"V"_"c"`
Calculation: T = `(2 xx 3.14 (6.4 xx 10^6 + 6.4 xx 10^6))/(5.6 xx 10^3)`
T = 14354 s ≈ 4 hours
APPEARS IN
संबंधित प्रश्न
What is meant by the orbit of a satellite?
Why are geostationary satellites not useful for studies of polar regions?
Considering first correlation, complete the second.
Hubble telescope : At 569 km above the earth’s surface
Orbit of Hubble telescope : .............................
Write the proper name of the orbits of satellites shown in the following figure with their height from the earth’s surface.

The function of a satellite launcher is based on Newton's second law of motion.
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.
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 |
| The highest height ever reached by man made balloon | 400 | 9.8 |
| Orbit of spacecraft | 35700 | 9.77 |
| Orbit of communication satellite | 0 | 8.7 |
Define orbital velocity.
Why are some satellites called geostationary?
Numerical problem.
At an orbital height of 400 km, find the orbital period of the satellite.
What is microgravity?
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 equations:

