Two thin lenses of focal lenses 3.0cm and 4.0cm are kept in contact if an object is placed 4 .0 cm away from the lens combination. Find the position of the image. Draw it's ray diagram.
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Two thin lenses of focal lenses 3.0cm and 4.0cm are kept in contact if an object is placed 4 .0 cm away from the lens combination. Find the position of the image. Draw it's ray diagram.
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Answer:
Given,
Focal length, f=15cm
Object distance, u=25cm
Object height, h
0
=4cm
From mirror formula,
f
1
=
v
1
+
u
1
−15
1
=
−25
1
+
v
1