6. Number of days when earth shadow falls on geosynchronous satellite is :
(a) 12
(b) 31
(c) 88
(d) 365
Explanation
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7. Synchronous satellites orbit the earth once in :
(a) 1 hour
(b) 90 minutes
(c) 24 hours
(d) 365 ¼ days
Explanation
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8. Communication satellites are invariably :
(a) Stationary
(b) Geostationary
(c) Revolving at their own speed
(d) Changing their track and speed
Explanation
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9. The distance of geostationary satellite from the surface of the earth is nearly :
(a) 360 km
(b) 3600 km
(c) 36000 km
(d) 360000 km
Explanation
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10. A geostationary satellite completes one orbit in :
(a) 1 hour
(b) 5 hour
(c) 24 hour
(d) 28 days
Explanation
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