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Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be on such an orbit when: 1. The orbit is geosynchronous. 2. The orbit is circular. 3. The orbit lies in the plane of the Earth's equator. 4. The orbit is at an altitude of 22,236 km. Select the correct answer using the codes given below: 
This are the following statements given regarding satellite’s motion a. A satellite in geostationary orbit lies in the same plane with equator b. A satellite in geosynchronous orbit lies in the same plane with equator c. A satellite in geostationary orbit does not lie in the same plane with equator, it is inclined at some angle from plane of equator d. A satellite in geosynchronous orbit does not lie in the same plane with equator, it is inclined at some angle from plane of equator Choose one of the following options
On 17 January 2021, Virgin Orbit the California-based satellite launch company recently launched its Launcher One rocket to orbit. What statements is/are CORRECT regarding the rocket? 1. It places the satellites in Sun Synchronous Orbit 2. It is the first all liquid-fuelled air-launched orbital rocket 3. It is capable of carrying payloads of up to 500–600 kg to a 310-mile-high (500-km) polar orbit Select the correct answer using the code given below. (A) 1 only (B) 2 only (C) Both 1 and 2 (D) Both 2 and 3
Which of the following statements about the movement of planets is true? A. A planet's orbit is elliptical with the Sun at one of two focal points. B. The orbit of a planet is circular with the sun in the center. C. The orbit of a planet is elliptical with another planet in one of the two center-points. D. The orbit of a planet is circular with another planet in the center. 
Consider the following statements about Low Earth Orbit (LEO) 1. It is an Earth-centered orbit with an altitude of 2,000 km or less 2. The International Space Station conducts operations in LEO 3. Major disadvantage of Low Earth orbit is that it requires a high amount of energy for satellite placement 4. Spy satellites cannot use LEO Which of the above statements is/are not correct?
What is the area swept by a satellite in an elliptical orbit around earth at t = T/5, where T is the time period of the orbit? Given, semi-major axis and semi-minor axis of the orbit are 9,000 km and 4,000 km respectively.
A space station moving in a circular orbit around the earth goes into a new bound orbit by fixing its engine radially outwards. This orbit is
Consider the following statements.
1. The time period of satellite does not depend on the radius of the orbit.
2. The orbital velocity is inversely proportional to the square root of the radius of the orbit.
3. The orbital velocity of a satellite increases with the radius of the orbit.
Which of the statement(s) given above is/are correct?
The number of electrons in the outer most orbit of carbon atom is
Which set of the elements have 4, 5 and 6 electrons in their outer most orbit?