Mensurationmedium · Past Paper
The volume of a sphere is doubled. What is the ratio of the new radius to the old radius?
A2:1
B³√2:1
C√2:1
D4:1
✓ Correct Answer: B — ³√2:1
V2/V1 = (r2/r1)³ = 2. So r2/r1 = cube root of 2.
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