A certain myopic person has a far point of 150 cm. If he is able to read a book at 25 cm, while wearing the glasses, is his near point less than 25 cm. ?

A certain myopic person has a far point of 150 cm. What power of a corrective lens must have to allow him to see distant objects clearly ?

A myopic adult has a far point at 0.1m. His power of accomodation is 4 dioptres What is his near point without glasses? (Take the image distance from the lens of the eye to the retina to be 2 cm).

A myopic adult has a far point at 0.1m. His power of accomodation is 4 dioptres What is his near point with glasses? (Take the image distance from the lens of the eye to the retina to be 2 cm).

A farsighted person has a near point of 75 cm for one eye and a near point of 100 cm for the other .What pwers should corrective lenses have to allow the person to see an object clearly at a distance of 25cm.

With a certain cell, the balance point is obtained at 65 cm from the zero end of a potentiometer wire. With another cell, whose e.m.f. is less than that of the first by 0.1 V, the balance point is obtained at 60 cm. What is the e.m.f. of the first cell ?

Ram’s near point is 50 cm. Find the nature and power of lens which would enable him to read a book placed at 25 cm from his eyes.