Question

an object 4 cm high is placed at a distance of 16 cm from a concave mirror which produces a concave mirror which produces a read image 5 cm high what is the focal length of the mirror​

Answer 1

Answer:

m = - v / u = h (image) / h (object)

-v / -16 = -5 / 4

v = -20 cm

m = -5 / 4, So the image is real, inverted because m is negative and it is magnified because m > 1