Explore 3D / Physics
Optics Explorer
Explore reflection and refraction with simplified ray diagrams. Change the object distance and focal length to see how the image changes.
Incident / object ray
Principal rays
Image
Converging lens
Real, inverted image
A convex lens converges parallel rays. The image position depends on the object distance and focal length.
Image distance30 cm
Magnification−1.00×
Image orientationInverted
Image typeReal
Thin lens formula: 1/f = 1/v + 1/u, using positive object and focal distances for this simplified convention.
This diagram is schematic, not to scale. It uses a simplified paraxial ray model for introductory learning.