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The radii of two planets are respectively R1 and R2 and their densities are respectively rho subscript 1 and rho subscript 2 the ratio of the accelerations due to gravity at their surface is……

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  1. g subscript 1 colon g subscript 2 equals fraction numerator rho subscript 1 over denominator R subscript t superscript 2 end fraction times fraction numerator rho subscript 1 over denominator R subscript 2 superscript 2 end fraction
  2. g subscript 1 colon g subscript 2 equals R subscript 1 rho colon R subscript 2 rho subscript 2
  3. g subscript 1 colon g subscript 2 equals R subscript 1 R subscript 2 colon rho rho subscript 2
  4. g subscript 1 colon g subscript 2 equals R subscript 1 rho subscript 2 colon R subscript 2 rho subscript 1

    Answer:The correct answer is: g subscript 1 colon g subscript 2 equals R subscript 1 rho colon R subscript 2 rho subscript 2

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