length of the lens.
45. A convex lens of 20 cm focal length is placed in contact
with a concave lens of 25 cm focal length. Find the
position and nature of the image of an object placed
at a distance of 2 m from this combination.
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Answer:
0.4 metre
Length
40Centimeter
0.4
Meter
Formula
divide the length value by 100
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