an object of height 4cm is placed at a distance of 30cm from the optical centre O of a convex lens of focal length 20cm.draw a ray diagram to find the position and size of the image formed.Mark optical centre O and principal focusFon the diagram.also find the approximate ratio of size of the image to the image to the size of the object
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In this case, the approximate ratio of the size of the image to the size of the object is ascertained by magnification of the lens.
The image that appears will be in the ratio of 2:1 with the size of the object, meaning that it will be twice the size of the object. The image will also be real and inverted.
The image that appears will be in the ratio of 2:1 with the size of the object, meaning that it will be twice the size of the object. The image will also be real and inverted.
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