A far sighted person has his near point 50 cm. Find the power of lens he should use to see at 25 cm, clearly.

A far sighted person has a near point of 60 cm. What power lens should be used for eye glasses such that the person can read a book at a distance of 25 cm.

A far sighted person has a near point of 60"cm" . What power lens should be used for eye glasses such that the person can be read this book at a distance of 25 cm.

A far sighted person has a near point of 60"cm" . What power lens should be used for eye glasses such that the person can be read this book at a distance of 25 cm.

A far sighted person has a near point of 60"cm" . What power lens should be used for eye glasses such that the person can be read this book at a distance of 25 cm.

A far-sighted person has a near point at 100 cm. What must be the power of the correcting lens?

A nearsighted person cannot clearly see beyond 200 cm. Find the power of the lens needed to see objects at large distances.

A nearsighted person cannot clearly see beyond 200 cm. Find the power of the lens needed to see objects at large distances.

A nearsighted person cannot clearly see beyond 200 cm. Find the power of the lens needed to see objects at large distances.

(a) A nearsighted person cannot clearly see beyond 200 cm . Find the power of the lens needed to see objectes at large distances. (b) A farsighted person cannot see objects placed closer to 50cm . Find the power of the lens needed to see the objets at 20cm . (c) A person wears glasses of power -2.5 D . Is the person farsighted or nearsighted? What is the far point of the person without the glasses?