1. Tardigrade
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  3. Physics
  4. The gravitational field strength at the surface of planet is ‘g’. Which of the following is the gravitational field strength at the surface of a planet with twice the radius and twice the mass?

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Q. The gravitational field strength at the surface of planet is $‘g’.$ Which of the following is the gravitational field strength at the surface of a planet with twice the radius and twice the mass?

Solution:

$g=\frac{G M}{R^{2}} ; $
$g=\frac{G(2 M)}{(2 R)^{2}}$
$=g / 2$