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Question
The given ray diagram illustrates the experimental set up for the determination of the focal length of a converging lens using a plane mirror.
(i) State the magnification of the image formed.
(ii) Write two characteristics of the image formed.
(iii) What is the name given to the distance between the object and optical centre of the lens in the above diagram?
Diagram
Solution
(i) The image is highly enlarged.
(ii) (a) Real. (b) Formed at infinity on the other side of the lens.
(iii) The focal length of the lens.
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