JEE MAIN - Physics (2022 - 24th June Evening Shift - No. 2)
The distance between Sun and Earth is R. The duration of year if the distance between Sun and Earth becomes 3R will be :
$$\sqrt 3 $$ years
3 years
9 years
3$$\sqrt 3 $$ years
Explanation
We know that
T2 $$\propto$$ R3
$$ \Rightarrow {\left( {{{T'} \over T}} \right)^2} = {\left( {{{3R} \over R}} \right)^3}$$
$$ \Rightarrow {{T'} \over T} = 3\sqrt 3 $$
$$ \Rightarrow T' = 3\sqrt 3 $$ years
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