NEET 2018 Physics Kepler's Laws MCQ Question
The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are Kₐ, Kᵦ and Kc, respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then
Kₐ < Kᵦ < Kc
Kₐ > Kᵦ > Kc
Kᵦ < Kₐ < Kc
Kᵦ > Kₐ > Kc
Correct Answer
Detailed Explanation
In an elliptical orbit, the speed (and hence kinetic energy) is maximum at the closest point to the Sun (perihelion) and minimum at the farthest point (aphelion).
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