Question

A concave spherical mirror has a radius of curvature of 18 cm. Locate the images for object distances as given below. In each case, state whether the image is real or virtual and upright or inverted, and find the magnification. (If an answer does not exist, enter DNE. If an answer is infinity, enter INFINITY.)
(a)
p = 9 cm

image distance cm
image orientation
magnification

(b)
p = 18 cm

image distance cm
image orientation
magnification

(c)
p = 31 cm

image distance cm
image orientation
magnification

Answer 1

1/p + 1/q = 1/f
Insert p for each and solve for q
magnification is -q/p and orientation is upright or invert based on mag