BASIC SHAPES PRESENTATION

INTERFERENCE

OF LIGHT

Index

LIGHT INTEREFENCE

DEFINITION

SIMULATOR

INTERFERENCE

Overlapping light waves can combine by constructive or destructive interference.

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Constructive interference.

Constructive interference of light waves can be observed when light of one wavelength shines through two small slits onto a screen. The light on the screen will appear as a series of alternating bright and dark bands. The bright bands result from light waves combining through constructive interference to create a light wave with a greater amplitude.

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Destructive interference.

When waves combine by destructive interference, the resulting wave has a smaller amplitude than the individual waves had. Therefore, when light waves interfere destructively, the result will be dimmer light. If light of only one wavelength is used, both constructive and destructive interference are easily observed as illustrated.

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constructive

Constructive interference occurs when two waves overlap in such a way that they combine to create a larger wave.

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destructive

Destructive interference occurs when two waves overlap in such a way that they cancel each other out.

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Interference

simulator

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