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Gravitation question

2018 · Q147
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Gravitation question

2018 · Q147

NEETPhysicsGravitationMCQ+4 / −1
The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are KA, KB 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 NEET 2018 Physics - Gravitation Question 19 English
  1. A
    KA < KB < KC
  2. B
    KA > KB > KC
  3. C
    KB < KA < KC
  4. D
    KB > KA > KC
View written solutionFree

Correct answer: B

Speed of the planet will be maximum when its distance from the sun is minimum as mvr = constant.

NEET 2018 Physics - Gravitation Question 19 English Explanation

Point A is perihelion and C is aphelion.

Clearly, VA > VB > VC

So, KA > KB > KC

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