Question

A spherical shell is cut into two pieces along a chord as shown in the figure. `P` is a point on the plane of the chord. The gravitational field at `P` due to the upper part is `I_(1)`, and that due to the lower part is `I_(2)`. What is the relation between them?

A. `I_(1)gtI_(2)`
B. `I_(1)ltI_(2)`
C. `I_(1)=I_(2)`
D. no definite relation

Answer 1

Correct Answer - C
At point `P` we get `l_(1)-l_(2)=0` (because the gravitational field inside a shell is zero). Hence `l_(1)=l_(2)`