A ray of light from the object parallel to principal axis of a concave lens, after refraction appears to diverge from which point on the same side of the lens?
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A.
Point between optic centre and focus
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B.
Principal focus
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C.
Point between the centre of curvature and focus
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D.
Centre of curvature
Correct Answer:
@.
Explanation:
When a ray of light travels parallel to the principal axis of a concave (diverging) lens, the lens causes the light rays to spread apart. To an observer on the other side of the lens, these refracted rays seem to originate from a single specific location on the same side as the object. This point is known as the principal focus (F). Therefore, after passing through the concave lens, the parallel ray appears to diverge from the principal focus.
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