If two thin lenses of power p1 and p2 are held in contact then the power of the combination will be
p = p1 +p2
p = 1D + 2D
p = 3D
If two thin lenses of power p1 and p2 are held in contact then the power of the combination will be
p = p1 +p2
p = 1D + 2D
p = 3D
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