A) 1/2hr
B) 1hr
C) 2hr
D) 4hr
Correct Answer: C
Solution :
[c] A satellite revolving near the earth's surface has a time period of 84.6 min. We know that as the height increases, the time period increases. Thus the time period of the spy satellite should be slightly greater than 84.6 minutes. \[\therefore {{T}_{s}}=2hr\]
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