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QNEET-2018-Ph-908: NEET 2018 Physics - Class 11 NEET-2018-Ph-908 Solution: The kinetic energies of a planet in an elliptical orbit about…
The kinetic energies of a planet in an elliptical orbit about the Sun at positions A B and C are and 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
Multiple Choice Options
- A K A < K B < K C
- B K A > K B > K C
- C K B < K A < K C
- D K B > K A > K C
Step-by-Step Verified Solution
Speed of the planet will be maximum when
its distance from the sun is minimum as mvr =
constant.
Point A is perihelion and C is aphelion.
Clearly, V A
> V B
> V C
So, K A
> K B
> K C