# Light passes through a glass slab with parallel sides and thickness t. If i and r the angles of incidence of refraction, the lateral displacement is

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Light passes through a glass slab with parallel sides and thickness t. If i and r the angles of incidence of refraction, the lateral displacement is
A. tsin(i-r)
B. tcosr
C. tsin(i-r)//cosr
D. t tan r

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