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प्रश्न
Refer to fig
(i) Name the lens L.
(ii) What are the points O, O' called?
(iii) Complete the diagram to form the image of the object AB.
(iv) Write three characteristics of the image.
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उत्तर
(i) concave lens
(ii) Points O and O' are second focus and first focus respectively.
(iii)
(iv) Characteristics of image : erect, dimnished and virtual.
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