A geostationary satellite orbits at a fixed position above the surface of the Earth.It is used for communicating signals from one place to another place on the Earth.Question promptWhy does the satellite stay above a fixed position on the surface of the Earth?Question response areaSelect one optionIt moves in the same direction as the rotation of the Earth and completes one orbit of the Earth in 24 hours.It moves in the same direction as the rotation of the Earth and completes one orbit of the Earth in 365 days.It moves in the opposite direction as the rotation of the Earth and completes one orbit of the Earth in 24 hours.It moves in the opposite direction as the rotation of the Earth and completes one orbit of the Earth in 365 days.

Assume that the Moon is at a distance of3,00,000 km from the Earth, and that ittakes 28 days for it to orbit the Earth once.Geostationary satellites are those which areat a rest relative to the Earth. Using thesetwo facts, derive the altitude of thegeostationary satellite from the centre ofthe Earth.

The time period of a geostationary satellite is

A satellite follows a circular geostationary orbit, where its position can be described as x(t)=(Rsin(kt))i+(Rcos(kt))j𝑥(𝑡)=(𝑅𝑠𝑖𝑛(𝑘𝑡))i+(𝑅𝑐𝑜𝑠(𝑘𝑡))j, where R=40,000𝑅=40,000 is the radius of the orbital path in kilometres, t𝑡 is measured in hours, and k=π/12𝑘=𝜋/12.

The approximate height of a geostationary satellite is

The time period of a geostationary satellite is(A) 24 hours (B) 12 hours(C) 365 days (D) One month