The otoscope is one of the simplest and most frequently used medical instruments by general practitioner physicians and ear specialists (see the figure below). The device contains a converging lens with a power of 8.00 diopters, a battery-powered integrated light, and a disposable plastic speculum. (a) What is the maximum distance (in cm) from the otoscope lens that an object can be placed if an enlarged and upright image is to be seen? (b) When placed inside a patient's ear, the lens of the otoscope is 3.00 cm from the tympanic membrane, the eardrum. By what percentage is a 1.00 mm feature on the eardrum enlarged by the otoscope? (c) At what distance (in cm) from the eardrum would a feature on the eardrum be enlarged by 100%?

The otoscope is one of the simplest and most frequently used medical instruments by general practitioner physicians and ear specialists (see the figure below). The device contains a converging lens with a power of 8.00 diopters, a battery-powered integrated light, and a disposable plastic speculum. (a) What is the maximum distance (in cm) from the otoscope lens that an object can be placed if an enlarged and upright image is to be seen? (b) When placed inside a patient's ear, the lens of the otoscope is 3.00 cm from the tympanic membrane, the eardrum. By what percentage is a 1.00 mm feature on the eardrum enlarged by the otoscope? (c) At what distance (in cm) from the eardrum would a feature on the eardrum be enlarged by 100%?