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Question
A ray of light incident on a lens parallel to its principal axis, after refraction passes through or appears to come from ______.
Options
Its first focus
Its optical entre
Its second focus
The centre of curvature of its second surface
Solution
A ray of light incident on a lens parallel to its principal axis, after refraction passes through or appears to come from its second focus.
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RELATED QUESTIONS
What is a lens?
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In the following diagram ., the object and the image formed by the respective lenses are shown. Complete the ray diagram, and locate the focus. Find the focal length of the lens.
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