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Ray Optics (Apparent Depth)

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PhysicsRay Optics (Apparent Depth)

Three media P, Q and R have refractive indices 1, 1.25 and 1.5 respectively. Medium Q, of thickness 5 cm, is placed between extended media P and R. An object O is placed at the centre of medium Q. Viewed from medium P near the normal the apparent depth of O is h1; viewed similarly from medium R it is h2. The value of |h1 - h2|, in cm, is:

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