Consider the following statements:
1. Orbital speed of a satellite is independent of its mass
2. Orbital speed of a satellite depends upon the radius of orbit (height of satellite from the surface of earth)
3. Period of revolution of a satellite is independent of its mass
4. Escape velocity is independent of the mass, shape and size of the body and its direction of projection
Which of the statements given above is/are correct?
3 and 4 only
1, 2 and 3 only
1, 3 and 4 only
All of the above
Explanation:
• Orbital speed of a satellite is independent of its mass. Hence satellites of different masses revolving in the orbit of same radius have same orbital speed.
• Orbital speed of a satellite depends upon the radius of orbit (height of satellite from the surface of earth). Greater the radius of orbit, lesser will be the orbital speed.
The orbital speed of a satellite revolving near the surface of earth is 7.9 km/sec
• Time taken by a satellite to complete one revolution in its orbit is called its period of revolution.
• Period of revolution of a satellite depends upon the height of satellite from the surface of earth. Greater the height more will be the period of revolution.
• However, period of revolution of a satellite is independent of its mass.
• The period of revolution of satellite revolving near the surface of earth is 1 hour 24 minute (84 minute)
• Orbital speed of a satellite is independent of its mass. Hence satellites of different masses revolving in the orbit of same radius have same orbital speed.
• Orbital speed of a satellite depends upon the radius of orbit (height of satellite from the surface of earth). Greater the radius of orbit, lesser will be the orbital speed.
The orbital speed of a satellite revolving near the surface of earth is 7.9 km/sec
• Time taken by a satellite to complete one revolution in its orbit is called its period of revolution.
• Period of revolution of a satellite depends upon the height of satellite from the surface of earth. Greater the height more will be the period of revolution.
• However, period of revolution of a satellite is independent of its mass.
• The period of revolution of satellite revolving near the surface of earth is 1 hour 24 minute (84 minute)