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CBSE - 2015 Class 10 Physics- Question 23 Solution


     One half of a convex length of focal length 10cm 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.

              A 4cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20cm. The distance of the object from the lens is 15cm. Find the nature, position and size of the image.

  • Posted on 16/01/2018


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