focal length of concave lens of power -4D is
Answers
Answered by
2
Answer:
f= -0.25 m
Explanation:
P = 1/f
f = -1/4
= -0.25 m
Answered by
0
Answer: -0.25 cm
Explanation:
Formula P = 1/f
-4 = 1/f
f = -1/4
f = -0.25 cm
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