JEE Main 2022 · 24 Jun · Shift 2 · Physics Q32

PhysicsSingle correct+4 / -1Question 32 of 90

The distance between Sun and Earth is R. The duration of year if the distance between Sun and Earth becomes 3R will be :

\sqrt3

years

3 years

9 years

3\sqrt3

years

Answer and worked solution

Official answer: D

Kepler's third law. $T\propto R^{3/2}$ , so $T'=3^{3/2}\times1$ year $=3\sqrt3$ years.

(D)

Topics:Kepler's laws

JEE Main 2022 · 24 Jun · Shift 2, Physics question 32