______ satellite is used to telecast TV programmes from one part of the world to another.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Geostationary
A geostationary satellite circles the Earth above the equator at about 35,786 km, once in 24 hours, in the same direction as the Earth turns. It therefore stays over the same spot, so dish antennas can point at it without moving, and three such satellites can cover almost the whole Earth. This makes it the satellite used for TV broadcasting and communication.
Why the other options are incorrect
Option (1) Geocentric — Incorrect. It describes any orbit around the Earth; not every such satellite stays over one place.
Option (3) Polar — Incorrect. A polar satellite passes over the poles in a low orbit, used for mapping and weather, and keeps moving across the sky.
Option (4) Natural — Incorrect. A natural satellite is a moon, such as the Moon itself.