how does the lateral displacement depend upon thickness of glass slab
Answers
The lateral displacement is directly proportional to the thickness of the glass slab.
• When the light enters a glass slab,the light rays are refracted.
• Now,the lateral displacement is the final distance between the incident ray and the emergent ray.
• Now,the perpendicular distance between incident ray and emergent ray is dependent upon the length of the refracted ray because,the incident ray and refracted ray are not parallel to each other. Which means,the greater length of refracted ray will create more perpendicular distance between the incident ray and emergent ray.
• Now, greater thickness will allow the light rays to travel more distance through the glass slab and the final distance between incident ray and emergent ray,will be also increased. Vice versa for a thin glass slab.
• In this way,the lateral displacement is directly proportional to the thickness of the glass slab.