dioptre.
If the focal length is 50cm, then the power of the lens is
a) 1 b) 2 c) 3 d) None of these
Answers
Answered by
0
Answer:
power=1/focal length
power=1/50
power=0.02cm
non of these ...
Answered by
0
Answer:
Focal length of a lens is 50 cm.
So power is p=
f
1
=
0.5
1
where f is in metre.
Its power would be 2 dioptre
may it help you
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