Question

A 2 cm object is 10 cm from a convex lens that has a focal length of 4.4 cm. The image is 8 cm from the lens.

The height of the image, to the tenths place, is
cm.

Answer 1

Magnification m = -di/do = -8/10 = -0.8.
Image height = m × object height = -0.8 × 2.0 = -1.6 cm.

So the image height is -1.6 cm (the negative sign means the image is inverted).