TP 26.64

Given: d_o = 23.0 cm

f = -32.0 cm

Find: M, d_i -?

1/d_i + 1/d_o= 1/f

1/d_i = 1/f – 1/ d_o = - 1/(32.0 cm) - 1/(23.0 cm) = - 0.0747 cm^-1

d_i = - 13.4 cm

M = - d_i /d_o

M = - (- 13.4 cm)/(23.0 cm) = 0.583