a lens has a power of +0.5D, it is :-
(i) A concave lens of focal length 5m
(ii) A convex lens of focal length 5m
(iii) A convex lens of focal length 2m
(iv) A convex lens of focal length 2m
choose the correct option
Answers
Answered by
16
Answer:
Option no.3 is correct.
Answered by
0
Answer:
The option is 3 one
Explanation:
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