Question

15)A Geostationary satellite, appearing fixed above the broadcasting station can however receive these signals and broadcast them back to a wide area on earth. The INSAT group of satellites sent up by India is one such group of geostationary satellites widely used for telecommunications in India. Another class of satellites is called the Polar satellites. These are low altitude (500 to 800 km) satellites, but they go around the poles of the earth in a north-south direction whereas the earth rotates around its axis in an east-west direction. Since its time period is around 100 minutes it crosses any altitude many times a day. However, since its height h above the earth is about 500-800 km, a camera fixed on it can view only small strips of the earth in one orbit

A) What is the time period of geostationary satellite?

1) 12 hrs

2) 18 hrs

3) 20 hrs

4) 24 hrs

8) What is the time period of polar satellite 1) 200 min ?

2) 300 min

3) 100 min

4) 250 min

C) At what altitude geostationary satellite revolve? 1) 36000 km

2) 38500 km

3) 39000 km

4) 35000 km

D) At what altitude polar satellite revolve?

Ball. LTE l LTET +

1) 1000-1200 km

2) 500-800 km

3) 1500-2000 km

4) 200-400 km

E) Which satellite is used for communication purpose? 1) polar satellite

2) geostationary satellite

3) natural satellite

4) PSLV​

Answer 1

Answer:

46786 is the right answer