Image construction for the spherical mirror.
other vertices:
-60
o
-30
o
-15
o
-10
o
+20
o
+30
o
In order to obtain i=t, we use a pair of compasses.
The image position follows with
1/b = 1/f + 1/s
.
But,
f
is different for each different case.
Study also other vertices.