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Q. The orbital speed of jupiter, is

AIIMSAIIMS 1994Gravitation

Solution:

Orbital velocity $\left(v_{0}\right)=\sqrt{\frac{GM}{r}} \propto \frac{1}{r}$ (where r is the distance from sun).
Since the distance of jupiter from the sun is greater than the distance between the sun and the earth,
therefore orbital speed of jupiter is less than the orbital speed of earth.