Image Formation with Converging Lens
Lens Formula:
1
/
f
=
1
/
v
-
1
/
u
or
1
/
v
=
1
/
f
+
1
/
u
magnification:
m =
v
/
u
Focal length, (f) =
5
cm
Object Distance, (u) =
-10
cm
Image Distance, (v) =
10
cm
1
/
10
=
1
/
5
+
1
/
-10
&
m =
10
/
-10
=
-1
FORMULA
THEORY
Object
Real Image
Optical Axis
F1
F2
Convex Lens
Controls
f (in cm)
ho (in cm)
u (in cm)
Fixed 'u' values for focal length, f = 5 cm
u (in cm)
-1005
-15
-10
-8
-6.5
-4.99
-3.5
-2.5
-10