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?

What is meant by the minimum distance of distinct vision ?

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

The distance of distinct vision of a person is 50 cm . He wants to read a book placed at 25 cm . What should be the focal length of the spectacles ?

A long sighted person has a least distance of distinct vision of 50 cm. He wants to reduce to 25 cm. He should use a

A short sighted person can see objects most distinctly of 16 cm . If he wears spectacles at a distance of 1 cm from the eye, what focal length should he have so as to enable him to see distinctly at a distance of 26 cm ?

Least distance of distinct vision is 25 cm . Magnifying power of simple microscope of focal length 5 cm is

A short sighted person can see objects most distinctly at a distance of 16 cm . If he wears spectacles at a distance of 1 cm from the eye, what focal length should he have so as to enable him to see distinctly at a distance of 26 cm ? ( c) The person above prefers to remove his spectacles while reading a book. Explain why ? (NCERT Solved Example)

A person is unable to see objects nearer than 50 cm. He wants to read a book placed at a distance of 25 cm. Find the nature, focal length and power of the lens he requires for his spectacles.