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jok3333 [9.3K]
3 years ago
15

An object is located 5.0 cm from a concave mirror. The focal length is 15.0 cm. What is the image distance? Use the equation att

ached.
A.3.8 Cm
B.-3.8 Cm
C.-7.5 Cm
D.7.5 Cm

Physics
1 answer:
Fiesta28 [93]3 years ago
6 0

Answer:

-7.5 cm

Explanation:

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

d_o = 5.0 cm\\\\f = 15.0 cm\\\\d_i = ?

So we simply plug in the variables:

d_i = \frac{d_of}{d_o-f} \\\\d_i = \frac{5.0 * 15.0}{5.0 - 15.0}\\\\d_i = \frac{75}{-10}\\\\d_i = -7.5 cm

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