A lenses power -2. 5 D. What is the focal length and nature of the lens
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1
Answer:
it is a concave lens with focal length of 1/-.25 or 0.4
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Step-by-step explanation:
P=-2.5D
f=-0.4m
P=1/f
-2.5=1/f
f=1/-2.5
f=-0.4m
nature=virtual & erect
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