Problem 3
A transverse object of height is placed before a converging thin lens of focal length , perpendicular to its principal axis. Its distance from the lens is ; use the convention that image distance lies opposite the object and signed transverse magnification is . (a) Use the principal-ray construction to determine the image character and location. (b) Find the signed magnification and image height. (c) If a smaller object is placed at the same position, state what changes and what does not, explaining with the lens equation.
problems.proof.stepOf
problems.proof.analysis
A ray parallel to the axis refracts through the image focus, while a ray through the optical center is undeviated. Their intersection is described by the thin-lens equation.