CIE Physics GCSE - Light

Front

When rays of light hit a plane mirror, they are reflected.

Back

Front

Characteristics of an image formed from a plane mirror: The same size as the object, on the same side of the mirror as the object, an inverted (upside down) version of the object.

Back

Front

When light is reflected, the angle of incidence equals the angle of reflection.

Back

Front

Angles of incidence and reflection are measured relative to the normal.

Back

Front

A virtual image is produced on the same side of the lens as the object.

Back

Front

A real image is produced on the opposite side of the lens from the object and can be formed on a screen as the light rays cross after the lens.

Back

Front

A plane mirror produces a virtual image.

Back

Front

Refraction is the change in speed of a wave crossing a boundary between two media, resulting in a change in direction.

Back

Front

The frequency of a wave is not changed by refraction.

Back

Front

The critical angle is the angle of incidence which produces an angle of refraction of 90°.

Back