A mypoic adult has a far point at 0.1m. What power lenses are required to see distance objects? (Take the image distance from the lens of the eye to the retina to be 2cm)

A myopic adult has a far point at 0.1 m . His power of accomodation is 4 diopters. (i) What power lenses are required to see distant objects ? (ii) What is his near point without glasses ? (iii) 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 person cannot see beyond a distance of 50 cm.The power of corrective lens required to see distant object is

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

A convex lens produces a real image m times the size of the object. What will be the distance of the object from the lens ?

An object is placed at a distance of f//2 from a convex lens. The image will be

a man can see upto 100cm of the distant object. The power of the lens required to see far objects will be:

A nearsighted person cannot clearly see beyond 200 cm. Find the power of the lens needed to see objects at large distances.

A person's near point is 50 cm and his far point 3m . Power of the lenses he requires for (i) reading and (ii) for seeing distant stars are

A converging lens has a focal length of 0.12 m. To get an image of unit magnification the object should be placed at what distance from the converging lens ?

What happens to the image distance in the eye when we increase the distance of an object from the eye ?