Question

a student has to trace the path of a ray of light passing through a rectangular glass slab for four different values of angle of incidence.write two conclusions for this experiment

Answer 1

☝️First, the refracted ray bends towards to normal ray and the emergent ray is parallel to the incident ray.

✌️Second, Within the experimental error, angle of incidence=angle of emergent.

Answer 2

The conclusions that the student will draw based on his experiment are:

• The incident ray, refracted ray and normal, all lie in the same plane.

• The incident ray and the refracted ray are on opposite side of the normal

• sin i / sin r  = constant

• Angle of Incidence = Angle of Emergence

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