Question

a person cannot see distant object up to 30 cm this defect can be corrected by using lens power of

Answer 1

power of lens is 30 dioptre he is suffering from myopia and convex lens will be used for correction.

Answer 2

Heyaa folk,
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Q. A person can't see distant objects upto 30 cm this defect can be corrected by using lens power of ___ ?
Ans : As the person can not see distant objects upto 30 centimetres, he is suffering from myopia. Therefore, this person can be called as myopic person. And to correct this defect, convex lens having power 2D can be used.
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Hope it helps u :)