12th grade

A thimb is 23.0 cm from a concave mirror. The focal point is 9.0 cm. Where is the image located?

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  1. Please subject, not grade level.

    Use the formula 1/Do + 1/Di = 1/f
    and solve for the image distance Di.
    Do = 23 cm
    f = 9.0 cm

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