INVESTIGATION+OF+REFRACTION+USING+VARIOUS+PERSPEX+BLOCKS

Back to IGCSE PHYSICS > WAVES > LIGHT AND SOUND =INVESTIGATION OF REFRACTION USING PERSPEX BLOCKS=

PROCEDURE

 * 1) Using the perspex blocks which are supplied with the ray boxes, plot rays which pass through the blocks (see diagram).
 * 2) For each incident ray, add a normal line in a different colour.

**CONCLUSION**

 * 1) What is refraction?
 * 2) Does the incident ray ever continue in a straight line?
 * 3) When does the incident ray move nearer to the normal?
 * 4) When does the incident ray move away from the normal?
 * 5) Is there also reflection? If so, when?
 * 6) Do the lenses also refract?
 * 7) Have you seen any examples of the formation of a real image (rays really crossing at a point)?
 * 8) Have you seen any examples of virtual images (rays seeming to come from a single point)?