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Two Thin Lenses with Focal Lengths S and R and Separated

Question 7

Multiple Choice

Two thin lenses with focal lengths s and r and separated by a distance d 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. Two thin lenses with focal lengths s and r and separated by a distance d 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)


A) Two thin lenses with focal lengths s and r and separated by a distance d 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)
B) Two thin lenses with focal lengths s and r and separated by a distance d 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)
C) Two thin lenses with focal lengths s and r and separated by a distance d 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)
D) Two thin lenses with focal lengths s and r and separated by a distance d 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)
E) Two thin lenses with focal lengths s and r and separated by a distance d 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)

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