one half of a convex lens of focal length 10 cm is covered with a black paper .can such a lens produce an image of a complete object placed at a distance of 30 cm from the lens draw a ray diagram to justify your answer?
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· One half of a convex lens of focal length 10cm is covered with black paper. Can such a lens produce an image of a complete object placed at a distance of 30cm from the lens ? Draw a ray diagram to justify your answer. A 4cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20cm.
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