SPM-Physics-Formula-List-Form4
SPM-Physics-Formula-List-Form4
SPM-Physics-Formula-List-Form4
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Lens<br />
Power<br />
Linear Magnification<br />
Lens Equation<br />
http://www.one-school.net/notes.html<br />
1<br />
P =<br />
f<br />
P = Power (D(Diopter))<br />
f = focal length (m)<br />
hi<br />
m =<br />
h<br />
o<br />
1 1 1<br />
+ =<br />
u v f<br />
v<br />
h<br />
m = i v<br />
=<br />
u<br />
h u<br />
m = linear magnification (No unit)<br />
u = distance of object (m or cm…)<br />
v = distance of image (m or cm…)<br />
hi = heigth of image (m or cm…)<br />
ho = heigth of object (m or cm…)<br />
16<br />
Conventional symbol<br />
positive negative<br />
o<br />
ONE-SCHOOL.NET<br />
u Real object Virtual object<br />
v Real image Virtual image<br />
f Convex lens Concave lens
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