The time period of the satellites used in TV signal transmission from one part of the world to another is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 24 hours
TV signals are relayed by geostationary satellites, which orbit about 36,000 km above the equator. Their time period is equal to the Earth’s rotation, about 24 hours, and they move in the same direction as the Earth turns. So each one stays above the same place, and a dish aerial pointed at it once keeps receiving the signal.