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.
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
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?
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 |
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 |
How is a satellite maintained in nearly circular orbit?
Numerical problem.
Calculate the speed with which a satellite moves if it is at a height of 36,000 km from the Earth’s surface and has an orbital period of 24 hr (Take R = 6370 km) [Hint: Convert hr into seconds before doing calculation]
The orbital velocity of the satellite depends on its ______.
Write down the formula of orbital velocity.
The height of medium earth orbit above the surface of the earth is ______.
Write the name of small satellite made by a group of students from COEP (College of Engineering, Pune) sent to the space through ISRO in 2016.
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: ______ |
Complete the following equations: