Question: A bug is (30 mathrm{~mm}) away from a lens. As you look through the lens, the bug appears to be just at your near point

A bug is $30 \mathrm{~mm}$ away from a lens. As you look through the lens, the bug appears to be just at your near point $(0.250 \mathrm{~m}$ in front of your eyes). If the actual distance between your eyes and the bug is $130 \mathrm{~mm}$, what is the lens focal length?

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