Thanks!
By the way, i chanced upon a statement which says,"a piece of
material is given and it is semi-circle in shape. when light is
shone PERPENDICULARLY at the material, light is being
refracted".
how can the light ray be refracted when shone pependicularly? I
thought it should go through material undeviated?
Refracted when coming out on the other side?
Take note that the light cannot be shone perpendicular to the
material at the midpoint of the semi-circle.
and what are the properties of an object placed at f? it can be
virtual or real, but other than that, is there any other
properties?
Just like you stated.
If it is real, then it is inverted. Vice-versa.