If the curved surface area of a sphere with radius R 1 unit is the same as the total surface area of another hemisphere with radius R 2 , then the R 2 is:

SSC GD Constable 13 Jan 2023 Shift 4 Paper

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If the curved surface area of a sphere with radius R₁ unit is the same as the total surface area of another hemisphere with radius R₂, then the R₂ is:

$\;{2}/{{√{3}}}$ R₁
2R₁
same as R₁
${√{3}}$ R₁

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