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zorro
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Homework Statement
2 parallel rays are traveling in a medium of refractive index 4/3. One of the rays passes through a parallel glass slab of thickness t and refractive index 3/2. What will be the path differnce between the two rays due to the glass slab?
The Attempt at a Solution
The optical path covered by the ray inside the glass slab equals the phase difference.
So x=3/2 x t
The answer is incorrect.