The near point and far point of a person are 40cm and 250cm, respectively. Determine the power of lens he/she should use while reading a bool kept at distance 25cm away from it,

The near and far points of a person are at 40 cm and 250cm respectively. Find the power of the lens he/she should use while reading at 25cm . With this lens on the eye, what maximum distance is clearly visible?

The near and far points of a person are at 40 cm and 250cm respectively. Find the power of the lens he/she should use while reading at 25cm . With this lens on the eye, what maximum distance is clearly visible?

The near and far points of a person are at 40 cm and 250cm respectively. Find the power of the lens he/she should use while reading at 25cm . With this lens on the eye, what maximum distance is clearly visible?

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 .

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 his near point 50 cm. Find the power of lens he should use to see at 25 cm clearly.

Near point : 25 cm :: far point : ____

Near point : 25 cm :: far point : ____