how can we calculate the power of the lens
Answers
Answered by
0
First find the focal length(if it is not given). Generally it is given to you
Convert the focal length into meter. Let it be f meter
Power = 1/f D
D is the unit of power of lens. It is called diopter
Convert the focal length into meter. Let it be f meter
Power = 1/f D
D is the unit of power of lens. It is called diopter
r123:
thank u sooo much u save my tommorows class
glad to know that!! You are most welcome!!!
thanks bye
Answered by
0
Dn = u-1/r1 + u-1/r2 , D = i/f
thanks
Similar questions