Show by a diagram the image formation of...

Show by a diagram the image formation of a point object by a thin double convenx lens having radii of curvature `R_1` and `R_2`. Hence derive the formula `1/f=(n-1)[1/R_1-1/R_2]`, where f is the focal length and n is refractive index of material of the lens.

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Show by a diagram the image formation of a point object by a thin double convenx lens having radii of curvature `R_1` and `R_2`. Hence derive the formula `1/f=(n-1)[1/R_1-1/R_2]`, where f is the focal length and n is refractive index of material of the lens.

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