What is a wavefront ? - A line on which the disturbance has the same phase at all points , What is a normal ray ? - A ray at 90° to the surface , What is reflection ? - A wave bounces back at the same angle a plain surface at a plane surface, What is a real image ? - It can be formed on a screen , What is a virtual image ? - It cannot be formed on a screen , What are the properties of an image in a plane mirror ? - Same size same distance from the mirror and virtual, What is the angle of refraction ? - Angle between the normal and the refracted ray,

Reflection iGCSE C

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