Q93
A lens has a power of + 2.0D. The type of lens and its focal length will be . . . . . . . .
A.
convex, -0.5 m
B.
concave, -0.5 m
C.
concave, 0.5 m
D.
convex, 0.5 m
AnswerAnswer: Option D
Solution
Answer: Option D
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