A person has a minimum distance of distinct vision as 50cm. The power of lenses required to read a book at a distance of 25cm is

A certain person has a "minimum distance of distinct vision of "150cm" . He wishes to read at a distance of "25cm" .What " focal length glasses should he use?

A certain person has a minimum distance of distinct vision of 150cm. He wishes to read at a distance of 25cm. What focal length glasses should he use?

A longsighted person has a minimum distance of distinct vision of 50 cm. He wants to reduce it to 25 cm. He should use a

A longsighted person has a minimum distance of distinct vision of 50 cm. He wants to reduce it to 25 cm. He should use a

The distance of distinct vision of a person is 40 cm . Calcuate the power of the lens he should use to read newspaper at a distance of 25 cm .