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Two Thin Lenses with Focal Lengths T and Q and Separated

question 93

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Two thin lenses with focal lengths t and q and separated by a distance Two thin lenses with focal lengths t and q and separated by a distance   have their combined focal length given by the reciprocal of   . Combine the fractions in the expression above and use the reciprocal of your result to find the combined focal length. ​ A)    B)    C)    D)    E)   have their combined focal length given by the reciprocal of Two thin lenses with focal lengths t and q and separated by a distance   have their combined focal length given by the reciprocal of   . Combine the fractions in the expression above and use the reciprocal of your result to find the combined focal length. ​ A)    B)    C)    D)    E)   . Combine the fractions in the expression above and use the reciprocal of your result to find the combined focal length. ​


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