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An unsymmetrical double convex thin lens...

An unsymmetrical double convex thin lens forms the image of a point object on its axis will the position of the image change if the lens is reversed ?

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`rArr` According to formula, `(1)/(f) = ((n_2 - n_1)/(n_1))(1/(R_1) -1/(R_2))`
`therefore 1/v -1/u = ((n_2 - n_1)/(n_1))(1/(R_1) - 1/(R_2))`
Here even after inverting the lens (upside down)
values of `u,n_1,n_2` and `(1/(R_1) - 1/(R_2))` remain unchanged. Hence value of v (image distance) will remain same. It means that position of image will unchanged.
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