Question

Derive the lens formula


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Answer 1

1. The figure above shows that formation of a real, inverted and diminished image A'B' of the object AB placed beyond the centre of curvature at a distance u from the convex lens. ...
2. According to Cartesian sign convention,
3. Object distance (OB) = -u.
4. Image distance (OB') = +v.
5. Focal length (OF1 = OF2) = +f.

Answer 2

Answer:

this is the answer

Explanation:

• he figure above shows that formation of a real, inverted and diminished image A'B' of the object AB placed beyond the centre of curvature at a distance u from the convex lens. ...
• he figure above shows that formation of a real, inverted and diminished image A'B' of the object AB placed beyond the centre of curvature at a distance u from the convex lens. ...According to Cartesian sign convention,
• he figure above shows that formation of a real, inverted and diminished image A'B' of the object AB placed beyond the centre of curvature at a distance u from the convex lens. ...According to Cartesian sign convention,Object distance (OB) = -u.
• he figure above shows that formation of a real, inverted and diminished image A'B' of the object AB placed beyond the centre of curvature at a distance u from the convex lens. ...According to Cartesian sign convention,Object distance (OB) = -u.Image distance (OB') = +v.

he figure above shows that formation of a real, inverted and diminished image A'B' of the object AB placed beyond the centre of curvature at a distance u from the convex lens. ...According to Cartesian sign convention,Object distance (OB) = -u.Image distance (OB') = +v.Focal length (OF1 = OF2) = +f.