Question

Let $V$ and $E$ be the gravitational potential and gravitational field at a distance $r$ from the centre of a uniform spherical shell. Consider the following two statements
$\left(a\right)$ The plot of $V$ against $r$ is discontinous
$\left(b\right)$ The plot of $E$ against $r$ is discontinous

• A. Both $\left(a\right)$ and $\left(b\right)$ are correct
• B. $\left(a\right)$ is correct but $\left(b\right)$ is wrong
• C. $\left(b\right)$ is correct but $\left(a\right)$ is wrong
• D. Both $\left(a\right)$ and $\left(b\right)$ are wrong

Answer 1

The correct option is B $\left(a\right)$ is correct but $\left(b\right)$ is wrong

From the graphs, we can see that E is discontinous at R and V is continous.