Multiple choice question XLIII — task. Science CBSE, Class 9.

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Find the gravitational force between two protons kept at a separation of \(1\ femtometre\) ( 10^-15 m ) . The mass of the proton is \(1.67 \times 10^{- 24}\ kg\).

\(14.5 \times 10^{-53}\ N\)
\(18.6 \times 10^{–29}\ N\)
\(13.6 \times 10^{-63}\ N\)
\(16.5 \times 10^{-43}\ N\)

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43. Multiple choice question XLIII

Exercise condition: