What is the size of the image on the retina of a 1.20 x 10^-2 cm diameter human hair, held at arm's length (60.0 cm) away? Take the lens-to-retina distance to be 2.00 cm.

Strategy

We want to find the height of the image hi, given the height of the object is h_o = 1.20 x 10^-2 cm. We also know that the object is 60.0 cm away, so that d_o = 60.0 cm. For clear vision, the image distance must equal the lens-to- retina distance, and so d_i = 2.00 cm. The equation can be used to find h_i, with the known ho information.

Transcribed Image Text:

h₂ ho = - di = d; do = m