Question
According to Table 9.1, when an object is placed exactly at F in front of a concave mirror, the image
forms at C, same size
forms at the pole, diminished
would not be formed (rays become parallel, image at infinity)
is always virtual and erect
Detailed Explanation
Table 9.1 states that for an object at F, the image would not be formed on a screen, since the reflected rays become parallel (image at infinity).