Question

3. An artificial satellite revolves round the earth in circular orbit at height 7R (R=radius of earth) in 24h (called geostationary satellite). What will be the time period of another satellite (called spy satellite) which revolves very near to earth surface?


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Answer 1

Answer:

Here, h = 1000 km 1000 × 10³m = 106m

r = R + h = 6.38 × 106 + 106 = 7.38 x 10⁰m -

Orbital speed, GM R+h VO 6.67 x 10-11 x 6 × 1024 7.38 × 106

7364m s -1

Time period,

T 2лr 2 × (22/7) × (7.38 × 106) VO 7.364 × 10³ = 6297S.

Explanation:

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