find (a)
(b) the distance 1 at the point of exit, and
(c) the amount of the lateral displacement 2 of the emerging ray
![find a b the distance 1 at the point of exit and c the amount of the lateral displacement 2 of the emerging ray class=](https://us-static.z-dn.net/files/d84/d198e62eb5d094c69adb1f20f1e6e065.png)