Physics, asked by deepika342005, 9 months ago

formula to find focal length of concave lens​

Answers

Answered by akshayscience009
1

Answer:

1/f=1/v-1/u

Explanation:

Answered by apm43
0

Answer:

hi friend here is your answer..

we know that..

r=2f

the question is too find focal length

so..

f=r/2

Explanation:

hope its help you...

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