Two converging lenses are placed $$20.0$$ cm apart, as shown in figure. If the first lens has a focal length of $$10.0$$ cm and the second has a focal length of $$20.0$$ cm, locate the final image formed of an object $$30.0$$ cm in front of the first lens.

Question

Two converging lenses are placed $$20.0$$ cm apart, as shown in figure.  If the first lens has a focal length of $$10.0$$ cm and the second has a focal length of $$20.0$$ cm, locate the final image formed of an object $$30.0$$ cm in front of the first lens.

Infinity Learn · Accepted Answer

Image due first $$lens130+1v$$ $$=$$ $$1101v$$ $$=$$ $$110$$−$$130=$$ $$230$$ $$=$$ $$115V$$ $$=$$ $$15$$ cmIt’s distance from the $$2nd$$ lens is $$5cm$$ For second $$law15+1vf$$ $$=$$ $$1201vf$$ $$=$$ $$120$$−$$15$$ $$=$$ $$1$$−$$420vf$$ $$=$$ −$$203$$ $$=$$ −$$6.67cm$$

Two converging lenses are placed 20.0 cm apart, as shown in figure. If the first lens has a focal length of 10.0 cm and the second has a focal length of 20.0 cm, locate the final image formed of an object 30.0 cm in front of the first lens.

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