Question

Name the type of defective version of person is suffering from if he uses corn which lenses in his spectacles for the correction of his vision if the power of the lens is +0.5 T find the focal length of the lenses

Answer 1

Answer: The person in the query is suffering from hypermetropia, and the focal length of the lenses in their spectacles is approximately 2 meters.

Step-by-step explanation:

A person using converging or convex lenses with a power of +0.5 diopters (+0.5 D) in their spectacles is suffering from hypermetropia, also known as farsightedness. In hypermetropia, the person can see distant objects more clearly than nearby objects due to the inability of the eye to focus properly on close objects.

To find the focal length of the converging lens, you can use the formula:

Power (P) = 1 / Focal Length (f)

Given the power (P) is +0.5 diopters, you can calculate the focal length (f) as follows:

f = 1 / P

f = 1 / (+0.5 D)

f = 2 meters