For a normal eye, the cornea of eye provides a converging power of $$40$$ D and the least converging power of the eye lens behind the cornea is $$20$$ D. Using this information, the distance between the retina and the $$cornea-eye$$ lens can be estimated to be

Question

Infinity Learn · Accepted Answer

Converging power of $$corneaPc=+40DLeast$$ converging power of eye lens,$$Pe=+20DPower$$ of the $$eye-lens$$,$$P=Pc+Pe=40D+20D=60DPower$$ of the eye $$lensP=1Focal$$  length of  the  eye $$lensff=1P=160D=160m=10060cm=53cmDistance$$ between the retina and $$cornea-eye$$ $$lens=$$ Focal length of the eye $$lens=53cm=1.67cm$$

For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the cornea is 20 D. Using this information, the distance between the retina and the cornea-eye lens can be estimated to be

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