Question

solve this question guys and answer it according to 5 marks question. ​

Answer 1

Answer:

There are some possible reason due to this defect of vision may have arisen :

(a) elongation of eyeball

(b) excessive curvature of the lens.

(i) student unable to see distinctly the objects placed beyond 5m from his eyes because student suffering with myopia . A myopic eye can't see distinct object clearly but able to see nearby object clearly.

(ii) convex lens of suitable focal length is used to restore proper vision. After using convex , image formed at ratina. While before it , image was formed near the ratina . As shown in figure it is clear how the lens correct this type of defect.

HENCE SIMPLY USING CARTESIAN PLANE

Focal length of convex lens is positive

So, f = +5m

FORMULA OF POWER=1/F

Now, Power = 1/f = +1/5 = +0.2D

Hence, power is +0.2 diopter

HOPE THIS HELPED YOU PLZZZZ MARK BRAINLIEST☺☺☺☺☺