In the previous problem
(i) At `theta=cos^(-1)((2)/(3))`, the particle will lwave the hemisphere
(ii) At depth `R//3` below `A`, the particle will leave the hemisphere
(iii) At height `2R//3` above `O`, the particle will leave the hemisphere

Options

A. `(i),(ii)`
B. `(ii),(iii)`
C. `(i),(iii)`
D. `(i),(ii),(iiii)`

Answer

D

Explanation

when `N=0,i.e., cos theta=2//3`
`theta=cos^(-1)((2)/(3))`, the block leaves hemisphere
`j=R(1-costheta)=(R )/(3)`