An artificial satellite is revolving round the earth in a circular orbit. Its velocity

An artificial satellite is revolving round the earth in a circular orbit. Its velocity is half the escape velocity. Its height from earth’s surface is

Options

(a) 6400 km
(b) 12800 km
(c) 3200 km
(d) 1600 km

Correct Answer:

6400 km

Explanation:

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