Live measurements
- Image distance
- 14.4 cm
- Magnification
- -0.60
- Image height
- -3.60 cm
- Lens power
- 11.1 D
PhysicsGCSE & A-Level8 minBeta
Lens & Ray Diagram Lab
Construct principal rays through converging and diverging lenses, then connect the geometry to image distance, magnification and lens power.
Model presets
Reviewed starting statesCurriculum map
- Edexcel GCSE Physics
Light and Electromagnetic Spectrum → Ray diagrams, lenses and image formation - OCR A-Level Physics
Waves and quantum physics → Wave properties, superposition and interference
Model boundaries
- The lens is thin and paraxial rays make small angles with the axis.
- Distances use the real-is-positive sign convention shown in the diagram.
- Lens aberrations and material dispersion are ignored.
StudyVector-authored geometric-optics model using 1/f = 1/u + 1/v and m = −v/u; mapped to the reviewed curriculum topics shown below.
Accessible text description
A scale optical-axis diagram places a thin lens at the centre, an upright object on the left and focal markers on both sides. Coloured principal rays leave the object tip, refract at the lens and intersect at a calculated image. Solid rays locate real images; dashed backward extensions locate virtual images. Object and image arrows show orientation and relative height, while numerical outputs repeat the signed distances and magnification.