Question

in refraction of light through a glass slab , the direction of the incident rayand the refracted ray are........ .
a) perpendicular to each other
b)non parellel to each other
c)parellel to each other
d) intersecting each other​

Answer 1

in refraction of light through a glass slab the direction of the incident ray and the reflected ray are parallel to each other

Answer 2

In refractraction of light through a glass slab, the direction of the incident ray and  the refracted ray are parellel to each other

so the answer is (c)Parellel to each other

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