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    Physics A-Level

    Total internal reflection in semi-circular blocks

    What Total internal reflection in semi-circular blocks means in Physics A-Level, as defined for OCR.

    Definition of Total internal reflection in semi-circular blocks

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    Reference: OCR

    Directing the ray into the curved face along a radius so it hits the exact centre of the flat face, then increasing the angle of incidence beyond the critical angle.
    OCR · Electromagnetic waves (study guide)

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