Question

PLEASE HELP SOMEONE!!! An object is located 5.0 cm from a convex lens. The lens focuses light at a distance of 10.0 cm. What is the image distance? Use the equation attached.
A.-10.0 Cm

B.10.0

C.3.33Cm

D.-3.33Cm

Answer 1

Answer:

-10.0 cm

Explanation:

OK so in the equation they're having you use the variables are:

$d_o = 5.0 cm\\\\f = 10.0 cm\\\\d_i = ?$

So we simply plug in the variables:

$d_i = \frac{d_of}{d_o-f} \\\\d_i = \frac{5.0 * 10.0}{5.0 - 10.0}\\\\d_i = \frac{50}{-5}\\\\d_i = -10.0 cm$