Simple Description

A process when light is reflected inside a material by striking the boundary at an angle greater than the material's critical angle

Further Detail

Optical fibres work by constantly reflected light within its boundaries, enabling light to effectively bend around a corner as it follows the fibre. This happens because light hits the boundary of the fibre at an angle greater than the critical angle, causing total internal reflection to occur.

Related Words:

• Reflection
• Optical fibre
• Critical angle

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