Science, asked by abi2510, 8 months ago

1.power of a lens is-d,then its focal lenth is
a)4m
b)-40m
c)-0.25m
d)-2.5m

Answers

Answered by mythreearangi

2

Explanation:

I think so c

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Answered by rp790516

0

Answer:

4000

-40000

085756

568526

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