A lens a power of 3 dioptze, then its focal length is
approximately
(A)'0.3 cm
(B) 33 cm
(c) 3 cm
(0) 33m
Answers
Answered by
1
Answer:
33 cm is the focal length
Answered by
6
Answer:
(c) 3cm
Explanation:
p= 1/f
f = 1/p
f = 1/3
f = 0.33m
f = 3cm
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