The power of a convex lens of focal length 20 cm in diopter unit is?
Answers
Answered by
15
P=1/f
f=20cm
P=100/20
P=5D. Is answer.
f=20cm
P=100/20
P=5D. Is answer.
Answered by
5
p=100/f cm
=100/20
=5cm or 5 diopter
=100/20
=5cm or 5 diopter
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