A coin is located 22.0 cm to the left of a converging lens (f = 16.0 cm). A second, identical lens is placed to the right of the first lens, such that the image formed by the combination has the same size and orientation as the original coin. Find the separation between the lenses.
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First image is at
1/16 – 1/22 = 1/v
v = 58.666 cm
By symmetry the two lenses must be twice this distance apart
117.33 = 117 cm
Draw it with the image acting as the object for the second lens... its an attractive bit of geometry.
1/16 – 1/22 = 1/v
v = 58.666 cm
By symmetry the two lenses must be twice this distance apart
117.33 = 117 cm
Draw it with the image acting as the object for the second lens... its an attractive bit of geometry.