JEE Main 2022 · 30 Jul · Shift 2 · Physics Q5

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PhysicsSingle correct+4 / -1Question 5 of 90

The time period of X planet of our solar system is 8 years. The distance of earth from the sun is $1.5\times10^{11}$ m. The distance of the X planet from the sun will be :

3\sqrt2\times10^{11}

3\times10^{11}

6\times10^{11}

12\times10^{11}

Answer and worked solution

Official answer: C

Kepler's third law. $r\propto T^{2/3}$ : $8^{2/3}=4$ , so $r=6\times10^{11}$ m.

(C)

Topics:Kepler's laws

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JEE Main 2022 · 30 Jul · Shift 2, Physics question 5