Draw the following ray diagram.
a) If an object is kept beyond the centre of curvature in front of a convex lens.
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Explanation: When an object is placed beyond the centre of curvature, then a ray of light AO, parallel to the principal axis, passes through the focus F along the direction OF after refraction. The other ray of light AC passes through the optical centre C and goes straight without any deviation. The two refracted light rays meet each other at point A’, between the focus F and centre of curvature 2F on the other side of the lens. In this way, a diminished, real and inverted image A’B’ is formed.
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