Problem 3
An object is placed a distance from a converging thin lens of focal length . Find the image distance and transverse magnification , and state whether the image is real or virtual. (a) State the assumptions and establish the governing equation for the requested quantity. (b) Solve it in terms of the given symbols, identifying the direction, sign, or physical nature of the result. (c) Check a simple limiting case and state when the model remains valid. Use SI units consistently, retain the symbols in the setup, and enforce all geometric constraints and initial conditions.
problems.proof.stepOf
problems.proof.analysis
For a real object, the thin-lens equation in the usual real-is-positive convention is as shown; a real image has .