Mention one difference between reflection of light from a plane mirror and total internal reflection of light from a prism.

Monjur Alahi

Mention one difference between reflection of light from a plane mirror and total internal reflection of light from a prism.


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Salim Ahmed Kawsar

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When total internal reflection occurs from a prism, the entire incident light (100%) is reflected back into the denser medium. Whereas in ordinary reflection from a plane mirror, some light is refracted and absorbed so the reflection is partial.

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Salim Ahmed Kawsar

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In reflection of light from a plane mirror. Light reflect partially, some part reflect and transmit also. In total internal reflection through a prism there occurs 100% reflection of light.

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Salim Ahmed Kawsar

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In the case of a plane mirror, the reflection of light incident on the mirror takes place for all angles of incidence. In the case of total internal reflection of the light incident on a prism, the incident ray is first refracted and then suffers total reflection from the other face only, if light is incident at an tingle greater than the critical angle. Whereas a lot of light energy is absorbed in ordinary reflection, no light is absorbed during total internal reflection.

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