Physics GCSE Unit 3 higher

Light:

reflection- when a ray of light is reflected off a mirror, the angle of incidence is equal to the angle of reflection.

refraction- when a ray of light passes across a boundary between two transparent substances (e.g. from glass into air)

SLOW:

rays of light going from air INTO glass, water or perspex are SLOWED DOWN and bent TOWARDS the normal.

FAST:

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