Answer to Question #79200 in Optics for Younus

Question

An object of height 4.0 cm is placed at a diatance of 30cm from the optical centre 'O' of a convex lens of focal length 20 cm . Draw a ray diagram to find the position and size of the image formed . Mark optical centre 'O' and principal focus 'F' on the diagram. Also find the approximate ratio of size of the image to the size of the object ?

Answer 1

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