Refraction through Plates with Parallel Sides
المؤلف:
GEORGE A. HOADLEY
المصدر:
ESSENTIALS OF PHYSICS
الجزء والصفحة:
p-464
2025-12-18
26
When light passes through the side of a transparent plate with parallel sides, as at E (Fig. 1), it is bent toward the normal at E,taking the direction ЕН, as determined by the relative index of refraction, 
When the light
reaches H, the part passing through is bent away from the normal in the direction HK, as determined by the relative index of refraction, which is the reciprocal of the first index. Hence the direction of H К, the emerging ray, is parallel to LE.
Demonstration. - This can be shown by using a plate glass with parallel sides in the optical disk. Whatever the angle of the incident beam, it will be seen that the emergent beam is parallel to it.
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