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how to calculate the speed of light in a glass block. C Find the lateral distance d by which the light beam is shifted. The amount by which light slows in a given material is described by the index of refraction n.
Ms e Calculate the time required for the light to pass through the glass block. The index of refraction of glass is 15. This also happens in a Lens.
Write an expression to show the relation between the speed of light in air and the speed of light in glass.
D Calculate the speed of light in the glass and e the time required for the light to pass through the glass block. F Is the travel time through the block affected by the angle of incidence. N is the refractive index of the medium. A The speed of light passing through a medium is 18 x 10 8 m s -1.