Question

A ray of light after refraction through a concave lens, emerges parallel to the principal axis.
Under what edition does the?​

Answer 1

Answer:

So, we can draw a line AD parallel to principal axis because any ray of light passing through the focal length of the lens after refraction, passes parallel to the principal axis. (vi) Draw a line A'B', perpendicular to principal axis from B' representing the height of the image.

Explanation:

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Answer 2

Answer:

heya friend here's ur answer

Explanation:

if the light ray appears to coming from the focus then the light ray emerges parallel to principal axis after refraction

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