The power of a combination of two lenses in contact +1D. If the focal length of one of the lenses of the combination 1s + 20.0 cm , the focal length of the other lens would be
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The power of a combination of two lenses in contact +1D. If the focal length of one of the lenses of the combination 1s + 20.0 cm , the focal length of the other lens would be
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Answer:
+80.0 m
Explanation:
1D = 1/f
Therefore, f = 1m = 100cm
100cm = 20.0cm + x
Therefore x =
100 - 20
= +80.0cm