(A) define optical centre of a spherical lens. (B) a divergent lens has a focal lengthvof 20 cm. At what distance should an object of height 4 cm from the optical centre of the lens be placed so that its image formed 10 cm away from the lens . find the size of the image also. (C) draw a ray diagram to show the formation of image in above situation
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Optical Centre : The optical centre is defined as the geometric centre of the curved lens . ... Focus :The principal focus is defined as the point on the principal axis where the light rays traveling parallel to the principal axis after refraction actually meet (for a convex lens) or appear to meet (for a concave lens).
sorry dont know A, C
sorry dont know A, C
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Answer:
(a) Optical Centre: The optical centre is defined as the geometric centre of the curved lens
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