Media (afbeeldingen, foto's, illustraties, audio)

This podcast (audio) file explains how electric current can be obtained from the sun through the solar panel using direct illumination of the sun rays

This diagram, Vernier scale use 0.02 scale measurement is 19.44 mm, illustrates how to read the length of the given object using vernier calliper.

An image that illustrates light reflecting off a plain mirror.