At a distance of 7.5 cm, a 51-mm-high by 89-mm-long business card fills the screen of a cell phone in camera mode. If the focal length of the camera lens is 4.3 mm, what are the length I and height h of the camera's light sensor? m h = 1 = The light sensor is made up of 14 x 106 individual picture elements, or pixels (so this is a 14-megapixel sensor). Assume that the pixels are square. What are the area A and side lengths of each pixel? A = m² S= m m

At a distance of 7.5 cm, a 51-mm-high by 89-mm-long business card fills the screen of a cell phone in camera mode. If the focal length of the camera lens is 4.3 mm, what are the length I and height h of the camera's light sensor? m h = 1 = The light sensor is made up of 14 x 106 individual picture elements, or pixels (so this is a 14-megapixel sensor). Assume that the pixels are square. What are the area A and side lengths of each pixel? A = m² S= m m