The power of a convex of focal length 25cm is ??
Answers
Answered by
3
Answer:
4 Dioptar
Step-by-step explanation:
focal lenght,f=25cm(0.25 m)
power of lens = 1/focal lenght(in metre)
=1/0.25
=4 D
Answered by
0
Answer:
Since, it is a convex lens, the power is positive. Thus, P=+4D
Step-by-step explanation:
P= 1/f
f= 25cm = 0.25m
P = 1/ 0.25
P= + 4D
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