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Satellites orbiting the earth have a finite life and sometimes debris of satellites fall to the earth. This is because:

1. the solar cells and batteries in satellites run out.
2. the laws of gravitation predict a trajectory spiralling inwards.
3. of viscous forces causing the speed of the satellite and hence height to gradually decrease.
4. of collisions with other satellites.
Subtopic:  Satellite |
 53%
Level 3: 35%-60%
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The following are the given statements:
 

a. A polar satellite goes around the earth’s pole in the north-south direction.
b. A geostationary satellite goes around the earth in the east-west direction.
c. A geostationary satellite goes around the earth in the west-east direction.
d. A polar satellite goes around the earth in the east-west direction.



Choose the correct alternatives:

1. (a, c)

2. (a, d)

3. (b, c, d)

4. (a, c, d)

Subtopic:  Satellite |
 76%
Level 2: 60%+
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Which of the following are true?

1. a polar satellite goes around the Earth's pole in West-East direction.
2. a geostationary satellite goes around the Earth in East-West direction.
3. a geostationary satellite goes around the Earth in West-East direction.
4. a polar satellite goes around the Earth in East-West direction.

Subtopic:  Satellite |
 71%
Level 2: 60%+
Hints

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Satellites orbiting the earth have finite life and sometimes debris of satellites fall to the earth. This is because:
1. the solar cells and batteries in satellites run out.
2. the laws of gravitation predict a trajectory spiraling inwards.
3. of viscous forces causing the speed of the satellite and hence height to gradually decrease.
4. of collisions with other satellites.
Subtopic:  Satellite |
 76%
Level 2: 60%+
Please attempt this question first.
Hints

Which of the following are true?
1. A polar satellite goes around the earth’s pole in northsouth direction.
2. A geostationary satellite goes around the earth in east-west direction.
3. A geostationary satellite goes around the earth in west-east direction.
4. A polar satellite goes around the earth in east-west direction.
Choose the correct option:
1. (a), (d)
2. (b), (c), (d)
3. (a), (b), (c)
4. (a), (c)
Subtopic:  Satellite |
 81%
Level 1: 80%+
Please attempt this question first.
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