3.17

describe experiments to investigate the refraction of light, using rectangular blocks, semicircular blocks and triangular blocks

3.16

3.16: construct ray diagrams to illustrate the formation of a virtual image in a plane mirror

Task

For plane mirrors, the image is…

·         The same size as the object

·         The same distance as the object from the mirror

·         virtual (not real)

·         upright

·         lateral Inverted

3.15: Angle of incidence

Recall that the angle of incidence equals the angle of reflection.