A planet is moving in an elliptic orbit. If T,V,E and L stand, res | Filo
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Class 12

Physics

Mechanics

Gravitation

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A planet is moving in an elliptic orbit. If and stand, respectively, for its kinetic energy, gravitational potential energy, total energy and angular momentum about the centre of force, then

  1. T is conserved
  2. U is always positive
  3. E is always negative
  4. L is conserved but direction of vector L changes continuously
Correct Answer: Option(c)
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