Q. Which of the following graphs between the square of the time period and cube of the distance of the planet from the sun is correct?
A) [image:8_image11.emf]
B) [image:8_image12.emf]
C) [image:8_image13.emf]
D) [image:8_image14.emf]
Explanation
(c) According to kepler’s third law $T^{2} \propto r^{3};$ At $r = 0,T = 0$. It shows that the graph between $T^{2}$ and $r^{2}$ is a straight line passing through origin
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.