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Calculate the focal length of the mirror formed by the convex side of a shiny spoon that has a 2.23 cm radius of curvature.

Respuesta :

stigawithfun

Answer:

1.115cm

Explanation:

For a given mirror (concave or convex), the focal length (f) is related to its radius of curvature (R) by the following;

f = [tex]\frac{R}{2}[/tex]             ----------------(i)

Now, from the question;

R = 2.23cm

To get the focal length, substitute the value of R = 2.23cm into equation (i) as follows;

f = [tex]\frac{2.23}{2}[/tex]

f = 1.115cm

Therefore, the focal length of the mirror is 1.115cm

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