A lens of power plus two diopter is placed in contact with a lens of power minus 1 diopter what will be the focal length of divergent lens
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Answer:
-33.33cm.
Explanation:
The lens of power + 2D is placed with the lens of power - 1D,
Power of lens = -2 -1
Power of lens = -3
P = 100/f (cm)
f = 100/P
f = 100/-3
f = -33.33cm
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