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  1. The radii of two spheres are in the ratio 1: 2. The ratio of their surface areas is?
    2. A.
    1 : 2
    B.
    1 : 4
    C.
    1 : 1.414
    D.
    3: 8

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    Answer : Option B

    Explanation :

    Radii be x and 2x 


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