Lens mount: Converging lens f = + 30 cm. Converging lens f = + 10 cm, Converging lens f = + 5 cm, Diverging lens f = + 10cm.

From

Designing an Experimental Prototype to Support Geometric Optics Concepts Comprehension

Juan Carlos Ruiz Mendoza

American Journal of Educational Research. 2016, 4(16), 1179-1183 doi:10.12691/education-4-16-9