A man with defective eyes cannot see distinctly object at the distance more than 60 cm from his eyes. The power of the lens to be used will be

We cannot clearly see an object kept at a distance less than 25 cm from the eye.

We cannot clearly see an object kept at a distance less than 25 cm from the eye.

A far sighted person cannot see object clearly al a distance less than 75 cm from his eyes. The power of the lens needed to read an object al 25 cm is

A far sighted person cannot see object clearly al a distance less than 75 cm from his eyes. The power of the lens needed to read an object al 25 cm is

We cannot clearly see an object kept at a distance less than 25 cm from the eye. Give reason

A person with defective eyes can see the objects distinctly up to the distance 20 cm . What type of lens should be used and of what power?

A defective eye cannot see close objects clearly because their image is formed