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Question: Answered & Verified by Expert
Assertion : The earth is slowing down and as a result the moon is coming nearer to it.
Reason : The angular momentum of the earth moon system is not conserved.
PhysicsGravitationAIIMSAIIMS 2003
Options:
  • A if both assertion and reason are true and the reason is the correct explanation of the assertion
  • B if both assertion and reason are true and the reason is not the correct explanation of the assertion
  • C if assertion is true but reason is false
  • D if both assertion and reason are false statements.
Solution:
2861 Upvotes Verified Answer
The correct answer is: if both assertion and reason are false statements.
One of the basic requirement of the existence of all planetary motions is the conservation of angular momentum. If this law is violated, then no gravitational law will be able to explain the behaviour of the planets and the satellites as they do.

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