If the ratio of the volumes of two spheres is 8:27, find the ratio of their surface areas. यदि दो गोलों के आयतनों का अनुपात 8:27 है, तो उनके पृष्ठीय क्षेत्रफलों का अनुपात ज्ञात कीजिए।
A
4:9 (4:9)
B
2:3 (2:3)
C
16:81 (16:81)
D
8:27 (8:27)
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Correct Answer 4:9
Explanation
Volume ratio (R₁³/R₂³) = 8/27 => Radius ratio (R₁/R₂) = 2/3. Surface area ratio = R₁²/R₂² = 2²/3² = 4/9.