Question

explain the refraction of light by a glass slab with an a activity ​

Answer 1

Answer:

Hint: When the light ray travels from rarer to denser medium it bends towards the normal while that of rarer to denser goes away from normal.

Complete step by step solution: Consider a rectangular glass slab PQRS having parallel faces PQ and RS .

A ray of light EF in air is incident on the glass surface PQ at point O. As the ray EO enters from air (rarer medium) to glass (denser medium), the ray bends towards normal and follows the path OOl inside the glass slab. At point Ol, refraction enters from glass (denser medium) to air (rarer medium) the ray bends away from normal and follows the path OlH outside the glass slab. Here the ray EF is called incident ray, OOl called refracted ray and OlH called emergent ray.

As per the laws of refraction, the emergent ray OlH will be parallel to the incident ray EF. The perpendicular distance OlI=x between the original path of incident ray and the emergent ray is called the lateral displacement.

Explanation:

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