Respuesta :
A. 4 cm behind the mirror
For any mirror, sosi=f^2. Therefore, by plugging in the values, you get 18si=144. 144/18 = 8, so si=8
The focal point is located 12 cm from the mirror, and si is the distance of the image from the focal point, so the image is 4 cm from the mirror. The mirror is convex, so then the focal point and the image are both behind the mirror.
For any mirror, sosi=f^2. Therefore, by plugging in the values, you get 18si=144. 144/18 = 8, so si=8
The focal point is located 12 cm from the mirror, and si is the distance of the image from the focal point, so the image is 4 cm from the mirror. The mirror is convex, so then the focal point and the image are both behind the mirror.
Her image appear 4 cm behind the mirror. Option A is correct.
What is mirror equation?
A mirror equation is an equation that relates object distance and image distance to focal length.
The given data in the problem is;
Image distance (u) = ? cm
Object distance (v) =18 cm
f is the mirror's focal length =12
The equation is found as;
uv=f²
18 v=12²
18 v=144
v= 8
The image is 4 cm from the mirror because the focus point is 12 cm away from the mirror. Because the mirror is convex, the focus point and image are both behind it.
Hence, option A is correct.
To learn more about the mirror equation refer to the link;
https://brainly.com/question/3229491
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