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: To determine the focal length of a lens, the following except _ is needed Answers options Needles Siphon Converging Lens Diverging Lens​
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: To determine the focal length of a lens, the following except _ is needed

Answers options
Needles
Siphon
Converging Lens
Diverging Lens​

User Ajobi
by
3.7k points

1 Answer

4 votes
the answer should besiphon
User KyleFarris
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