if a person is unable to see the object at long distance but can see nearby objects. 1.name the defect. 2. what type of lens is used to correct it. 3.draw the suitable ray diagram before and after the correction. plz answer it .it is urgent and I am sure that I will mark u brainliest
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Answer: Hypermetropia or long sightedness
Case:- decreased anteroposterior diameter
Image is formed behind the retina
Correction: Biconvex lens.
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1
Answer:Short Sightedness or Myopia Correction will be Concave lens
Explanation:
The person is unable to see faraway abject but can see the nearby objects. These are the symptoms of myopia. In this disorder the Rays of light converge in front of the retina. In order to prevent this you need to use concave lenses that diverge the light a bit so that the lens will converge them properly.
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