MCQ
If height of a satellite from the surface of earth is increased, then its
  • A
    Potential energy will increase
  • B
    Kinetic energy will decrease
  • C
    Total energy will increase
  • All of these

Answer

Correct option: D.
All of these
d
(d)

For a satellite orbiting at height $h$ from earth,

$P.E=-\frac{G M_e m_s}{\left(R_e+h\right)}$

$K \cdot E =\frac{G M_\theta m_s}{2\left(R_\theta+h\right)}$

$T.E=-\frac{G M_e m_s}{2\left(R_\theta+h\right)}$

If $h$ is increased, $P.E$ increases (becomes less negative)

$K.E$ decreases

$T.E$ increases (becomes less negative)

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