Question
Download Solution PDFExamine the following statements and identify the correct statement/s :
Statement 'A': Within 24 hours the Earth rotates in 360o longitudes.
Statement 'B': The Earth requires four minutes to cross the one-degree longitude.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFStatements 'A' and 'B' are correct.
Key Points
- Within 24 hours the Earth rotates in 360-degree longitudes.
- The Earth requires four minutes to cross the one-degree longitude.
- Therefore, the rotation covers 15 degrees in one hour.
- Hence both statements A and B are correct.
Important Points
- There is a Prime meridian at 0o longitudes that passes through the Royal Observatory, Greenwich, in London, England.
- Longitudes are useful to decide the time at any place.
- Moving east (away from prime meridian) will increase the time by an hour for every 15 degrees.
- The standard time for India is +5:30, i.e, Indian time is 5.5 hours ahead of the time at 82.5 longitude.
Last updated on Jun 12, 2025
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