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Q.

What is a period of revolution of the earth satellite?Ignore the height of satellite above the surface of the earth. Given,(i) the value of gravitational acceleration, g = 10 ms -2.(ii) radius of the earth, Re = 6400 km(Take, π = 314) [KCET 2014]

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a

85 min

b

156 min

c

83.73 min

d

90 min

answer is C.

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Detailed Solution

Given, Re = 6400 km:: 6.4 X 106m, π =3.14, 9 =10 ms-2We know that, the period of revolution of the earth satelliteT=2πRe+h3gRe2 if h
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