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Consider the following statements :
Statement-I: Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past.
Statement-II: This is due to the tidal effects the Moon has on Earth’s rotation.
Which one of the following is correct in respect of the above statements?
  • a)
    Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I 
  • b)
    Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I 
  • c)
    Statement-I is correct but Statement-II is incorrect 
  • d)
    Statement-I is incorrect but Statement-II is correct
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements :Statement-I: Earth’s rotation...
Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars (see below). Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth’s rotation.
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Community Answer
Consider the following statements :Statement-I: Earth’s rotation...
Explanation:

Statement-I:
- The Earth's rotation is indeed slowing down slightly over time due to the tidal forces exerted by the Moon.
- This phenomenon is known as tidal braking, where the gravitational interaction between the Earth and the Moon results in a transfer of energy, causing the Earth's rotation to slow down.
- As a result, in the past, days were shorter because the Earth rotated faster.

Statement-II:
- The statement correctly identifies the reason behind the Earth's slowing rotation as the tidal effects caused by the Moon.
- The gravitational pull of the Moon creates tidal bulges on Earth, causing a torque that acts to slow down the Earth's rotation.
- Therefore, Statement-II provides the correct explanation for Statement-I.
Therefore, the correct option is:
a) Both Statement-I and Statement-II are correct, and Statement-II is the correct explanation for Statement-I.
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Consider the following statements :Statement-I: Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past.Statement-II: This is due to the tidal effects the Moon has on Earth’s rotation.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-Ib)Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-Ic)Statement-I is correct but Statement-II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'A'. Can you explain this answer?
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Consider the following statements :Statement-I: Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past.Statement-II: This is due to the tidal effects the Moon has on Earth’s rotation.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-Ib)Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-Ic)Statement-I is correct but Statement-II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements :Statement-I: Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past.Statement-II: This is due to the tidal effects the Moon has on Earth’s rotation.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-Ib)Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-Ic)Statement-I is correct but Statement-II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements :Statement-I: Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past.Statement-II: This is due to the tidal effects the Moon has on Earth’s rotation.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-Ib)Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-Ic)Statement-I is correct but Statement-II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'A'. Can you explain this answer?.
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