SOLAR SYSTEM

UNIVERSE

SATELLITESICY BODIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is true about geostationary satellite I. Moves in the direction of earth orbitII. Period of rotation is 24hoursIII. Orbit always above the same geographical locationIV. Doesn’t experience any gravitational pull
A
I, II, III only
B
I and III only
C
II and IV only
D
All the above
Explanation: 

Detailed explanation-1: -Satellites in geostationary orbit (GEO) circle Earth above the equator from west to east following Earth’s rotation – taking 23 hours 56 minutes and 4 seconds – by travelling at exactly the same rate as Earth.

Detailed explanation-2: -Satellites in geostationary orbit rotate with the Earth directly above the equator, continuously staying above the same spot. This position allows satellites to observe weather and other phenomena that vary on short timescales.

Detailed explanation-3: -The correct answer is option 2) i.e. 36, 000 km. CONCEPT: A geostationary satellite is an earth-orbiting satellite that revolves around the earth at the same time as the earth rotates along its axis. Due to the same time of the revolution, it appears stationary from the Earth, and hence it is called geostationary.

Detailed explanation-4: -It pretends to be stationary with respect to the Earth but if we talk about the Angular Speeds of both the Earth and the Geostationary satellite, they are different. Hence, the correct option is B. Hope that this answer helps you.

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