Question

A candle is placed in front of a concave spherical mirror of focal length 9.60 cm. The image of the candle is inverted and 3.40 times as large as the candle itself. What is the distance of the candle to the mirror? Show all work and provide units of measure.

Answer 1

f = 9.60 cm

m = -3.40 ( because the image is inverted the number is negative)

u = distance

M = f / f-u

-3.40 = 9.60 / (9.60 - u)

Solve for u:

u = 12.42 cm (Round answer as needed.)