Q32 of 56 Page 1

A student traces the path of a ray of light through a rectangular glass slab for the different values of angle of incidence. He observes all possible precautions at each step of the experiment. At the end of the experiment, on analyzing the measurements, which of the following conclusions is he likely to draw?

When a ray of light passes through a rectangular glass slab, then due to change in the refractive index from air to glass and then glass to air, the light is refracted. The angle of incidence is equal to the angle of emergency of light ray and also greater than angle of refraction.

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