An object is located 4 m from the first of two thin converging lenses of focal lengths 2 m and 1 m , respectively. The lenses are separated by 3 m . The final image formed by the second lens is located from the source at a distance of
Text Solution
Verified by ExpertsThe correct answer is:
B
From the lens formula (for first lens),
……… .. (i)
This image will be treated as the source for second lens, then again from lens formula, we have
This is the final image distance from 2nd lens, so the overall distance of image from the primary source (or object).
Then, 
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