Engineering Physics
SH 402
Question
2082 ShrawanChapter 5: Geometrical Optics5.1 Lenses, Combination of Lenses
Two lenses of focal lengths $8,\mathrm{cm}$ each are identical and co-axially separated by $4,\mathrm{cm}$. Determine the equivalent focal length of the combination. If the image is formed at infinity at a particular position of the object, find the object distance.
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