PHYSICAL LAYER AND TRANSMISSION MEDIA
TRANSMISSION MEDIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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one hour
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24 hours
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one month
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one year
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Detailed explanation-1: -EXPLANATION: Since geostationary satellite takes the same time to move around the earth as the earth takes to rotate on its axis. So, geostationary satellite completes one complete revolution in 24 hr around the earth.
Detailed explanation-2: -They complete an orbit in about 90 minutes because they are close to the Earth and gravity causes them to move very quickly at around 17, 000 miles per hour. Many satellites need to be used for communication relay because the area they cover on Earth’s surface is small and they are moving so quickly.
Detailed explanation-3: -Satellite that goes around the earth once every 24 hours is called a geosynchronous satellite. If a geosynchronous satellite is in an equatorial orbit, its position appears stationary with respect to aground station, and it is known as a geostationary satellite.