Power of a lens is -40, it's focal length is
O -25 m.
O -25 cm
O -2.5 m
O -2.5 cm
Answers
Answered by
0
Answer:
-2.5m
Explanation:
please make me brainliest
Answered by
0
Answer:
-2.5 m
Explanation:
please make me braineist
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