With a lens, both the height and width of the image exhibit magnification. With a mirror,...
With a lens, both the height and width of the image exhibit magnification. With a mirror, only the height is affected. Try to explain this difference.
Homework Answers
The key reason for such difference might be stated like this:
In case of a mirror the light undergoes reflection through the mirror surface so it just travels in straight direction and changes it's path without undergoing bending (by using law of reflection) and in such case only the height of the object can change.
But when it comes to Lens, the light passes through the lens material and undergoes refraction (bending due to difference in refractive index of lens and surrounding medium). Due to this bending the image formed by the refracted light not only has different height but also different width.
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