JEE Main Physics question
**Assertion:** Two satellites are following one another in the same circular orbit. If one satellite tries to catch another (leading) satellite, then it can be done by increasing its speed without changing the orbit.
**Reason:** The energy of an earth satellite system in a circular orbit is given by , where is the radius of the circular orbit.
Answer: (D)
Solution
For a circular orbit of radius , speed is fixed at ; speeding up while staying in the *same* orbit is not possible — any speed increase moves the satellite into a higher (or elliptical) orbit instead, so the
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