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Thin Lenses<br />
1<br />
p<br />
+<br />
1<br />
q<br />
=<br />
( n<br />
1 1<br />
−1)(<br />
−<br />
R 1<br />
R 2<br />
)<br />
Lens makers’ equation:<br />
1<br />
f<br />
=<br />
( n<br />
1 1<br />
−1)(<br />
−<br />
R 1<br />
R 2<br />
)<br />
f- focal length