Question

What will be the time taken by Jupiter to go around the Sun?
$\begin{align}
  & A.21years \\
 & B.20years \\
 & C.12years \\
 & D.2years \\
\end{align}$

Answer 1

Hint: Jupiter can revolve in its orbits around the sun once in every $11.86$ Earth years. This is found to be in every $4,330.6$ earth days. Jupiter is travelling in its orbit at an average speed of $29,236$ miles per hour. In kilometres we can say that Jupiter is revolving at $47,051\text{km per hour}$ in its orbit around the Sun.

Complete answer:
Planets which are orbiting closer to the sun than the earth are having shorter years than the earth. Similarly the planets which are orbiting farther from the sun than that from the earth are having longer years than that of earth. This is occurring primarily because of two main reasons. When a planet is nearer to the sun, the distance it revolves around the sun will be comparatively short. Such a distance is known as an orbital path. The farther a planet travels to the Sun, the lesser will be the gravity of the sun which will pull on the planet. Lesser the strength of the pull of the gravity of the sun, the slower the planet will revolve. This is the same in the opposite situation also. Jupiter can rotate in its orbits around the sun once in every $11.86$ Earth years. This is found to be in every $4,330.6$ earth days. That is the Jupiter planet takes $12\text{ years}$to go around the sun.

So, the correct answer is “Option C”.

Note:
 Jupiter is found to be the fifth planet from the Sun and also the largest in the Solar System. It is a giant gas planet with a mass one-thousandth of the mass of the sun. This is equivalent to two-and-a-half times that of all the other planets in the Solar System included.