A hobbyist inspects a coin with a magnifying glass, as shown below. Viewed through the lens, the coin appears to have th
Posted: Sat Jul 09, 2022 12:19 pm
A hobbyist inspects a coin with a magnifying glass, as shown below. Viewed through the lens, the coin appears to have three times its unmagnified diameter. If the coin lies 2.83 cm beneath the magnifying lens, what is the focal length (in cm) of that lens? cm