A person cannot clearly see the letters of a book located at a distance of less than 50 cm from his eyes.

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

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

A person cannot see the objects distinctly, when placed at a distance less than 100 cm . What is the power of the spectacles that he should use to see clearly the objects placed at 25 cm ?

A person cannot see the objects distinctly, when placed at a distance less than 100 cm . What is the power of the spectacles that he should use to see clearly, the objects placed at 25 cm ?

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 person can not see the objects clearly placed at a distance more than 40 cm . He is advised to use a lens of power

A man cannot see clearly the objects beyond a distance of 20 cm from his eyes. To see distant objects clearly he must use which kind of lenses and of what focal length