A person focusses on a page of text held 40.0 cm away from their eye. A character is 0.3 cm tall. Calculate the height of the character on the retina, and the focal length of the lens. You can assume that the eyeball is 2.0 cm in diameter. Optics of the Human Eye Overlay Eye Anatomy Retina Fovea centralis Optic Nerve Central retinal v. Superior rectus m Ora serrata Cillary body Vitreous Bode Lens Inferior rectus m Posterior chamber Anterior Chamber Comea Zonules Sclera Object Far Near Focus Normal Vision Near Sighted Object Position Far Sighted Near Needs Bifocals Far

A person focusses on a page of text held 40.0 cm away from their eye. A character is 0.3 cm tall. Calculate the height of the character on the retina, and the focal length of the lens. You can assume that the eyeball is 2.0 cm in diameter. Optics of the Human Eye Overlay Eye Anatomy Retina Fovea centralis Optic Nerve Central retinal v. Superior rectus m Ora serrata Cillary body Vitreous Bode Lens Inferior rectus m Posterior chamber Anterior Chamber Comea Zonules Sclera Object Far Near Focus Normal Vision Near Sighted Object Position Far Sighted Near Needs Bifocals Far