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A light bulb is placed 20 cm in front of a concave mirror with a focal length of 8 cm. How far from the mirror will the image of the light
Question
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Answers ( )
Answer:
13.3 cm
Explanation:
Mirrors work using the principle of refraction.
We can solve this problem by using the mirror equation:
where
f is the focal length of the mirror
p is the distance of the object from the mirror
q is the distance of the image from the mirror
In this problem, we have:
f = 8 cm is the focal length
p = 20 cm is the distance of the light bulb from the mirror
Solving for q, we find the distance of the image from the mirror: