Q. Starting from the centre of the Earth having radius R, the variation of g (acceleration due to gravity) is shown by
A) [image:2016_Q11_opt_a.png]
B) [image:2016_Q11_opt_b.png]
C) [image:2016_Q11_opt_c.png]
D) [image:2016_Q11_opt_d.png]
Explanation
[Solution] Inside, $g \propto r$ (linear rise to R); outside, $g \propto 1/r^2$: graph (2). Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.