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Question: Answered & Verified by Expert
Assertion : The length of the day is slowly increasing.
Reason : The dominant effect causing a slowdown in the rotation of the earth is the gravitational pull of other planets in the solar system.
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:
1595 Upvotes Verified Answer
The correct answer is: if assertion is true but reason is false
Because of the gravitational pull of other planets in the solar system, the earth cannot get slowed down in rotation. Because, if it happens so, it will affect the conservation of angular momentum which is not possible.

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