About Tier 3 - Dimension
Requires several pieces of reasoning to be organised into a solution.
Difficulty describes the challenge, not the solver. It is a Society guide rather than a formal academic level.
The tier is a Society guide to the amount of reasoning, technical work and insight a problem is expected to require. Your experience may vary depending on the topic and your background.
Where Does the Image Form?
Waves & Optics / Thin Lenses - 6 min
A converging thin lens in air has focal length . A real object is placed in front of it. How far from the lens does the real image form on the opposite side?
Use positive for a converging lens, positive for this real object, and positive for a real image on the opposite side. Use the thin-lens approximation.
Assumptions
Use a thin lens in air and paraxial rays. Ignore aberrations. Distances are measured from the lens plane; the positive-real object/image convention stated in the question is used throughout.
More Options for Where Does the Image Form?
Collection question · Revision 1 · ID: thin-lens-image