When a child is sit in back bench he didnot ss completly what disese cause draw ray diagram
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The refractive defect the child is suffering from is hypermetropia.
About Hypermetropia:
It is also known as farsightedness. A person with hypermetropia can see distant objects clearly. This is because near point of the eye is further away from normal near point.
Causes:
- Eyeball becomes too small.
- Focal length of eye is too long.
Correction:
A concave lens of suitable focal length is used.
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