Question
Download Solution PDFOn a spherical globe of radius 10 units, the distance between A and B is 25 units. If it is uniformly expanded to a globe of radius 50 units, the distance between them in the same units would be
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Surface area of a sphere of radius r is 4πr2
Explanation:
Original radius of globe = 1o units and distance between A and B is 25 units
Now, after expansion, radius is 50 unit
so radius increase 5 times.
Therefore, surface area will increase 52 = 25 times
Hence now distance between A and B = 25 × 25 = 625 unit
Option (4) is correct
Last updated on Jun 5, 2025
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