Science, asked by gr8glory08, 9 months ago

the power of convex lens of focal length 25 cm is........
a) +4.0 D
b) 0.25 D
c) -4.0 D
d) -0.4 D

please answer correctly by solving so that i can understand how the ans came and get a brainly mark

Answers

Answered by krushnaivrathod
3

Answer:

+ 0.4 D

Explanation:

please mark brainliest

Answered by sujal78620
1

Answer:

a) +4.0 D

Explanation:

Power of lens,P=1/f

=1/25cm

(the focal length should be in meter

therefore f=25cm

=.25m)

=1/.25

=4.0D

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