Physics · 2015
NEET 2015 · 3 May · Code E · Q13
Kepler's third law states that square of period of revolution (T) of a planet around the sun, is proportional to third power of average distance r…
Kepler's third law states that square of period of revolution (T) of a planet around the sun, is proportional to third power of average distance r between sun and planet
i.e. $\displaystyle \mathrm{T}^2=\mathrm{Kr}^3$
here K is constant.
If the masses of sun and planet are M and m respectively then as per Newton's law of gravitation force of attraction between them is
$$F=\frac{G M m}{r^2} \text {, here } G \text { is gravitational constant }
$$
The relation between $\displaystyle G$ and $\displaystyle K$ is described as :
Official answer
(2)
$\displaystyle \mathrm{GMK}=4 \pi^2$
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NEET (UG) 2015 Physics question, with the answer from NTA’s final answer key. Where our answers come from.