Class 10ScienceThe Human Eye and the Colourful WorldMix Examples - The Human Eye and the Colourful World
Medium$A$ person cannot read a book at distances less than $50\, cm$. Name the defect of vision he is suffering from. How can it be corrected? Draw ray diagrams to show the image formation
$(i)$ by defective eye and
$(ii)$ after using corrective lens.
$(i)$ by defective eye and
$(ii)$ after using corrective lens.
(N/A) The defect of vision is Hypermetropia,also known as long-sightedness.
In this condition,the person can see distant objects clearly but cannot see nearby objects distinctly because the image of a nearby object is formed behind the retina.
It can be corrected by using a convex lens of suitable power,which converges the light rays before they enter the eye,allowing the image to be formed exactly on the retina.
In this condition,the person can see distant objects clearly but cannot see nearby objects distinctly because the image of a nearby object is formed behind the retina.
It can be corrected by using a convex lens of suitable power,which converges the light rays before they enter the eye,allowing the image to be formed exactly on the retina.
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