When the size of a spherical nanoparticle decreases from 30 nm to 10nm the ratio surface area volume becomes A

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(#M40027182) KVPY question General Ability Test Keep an EYE

When the size of a spherical nanoparticle decreases from 30 nm to 10nm, the ratio surface area/volume
becomes
(A) 1/3 of the original (B) 3 times the original
(C) 1/9 of the original (D) 9 times the original: Asked In KVPY (10 years ago); Unsolved; Is this Puzzle helpful? (1) (2) Submit Your Solution

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Latest KVPY Aptitude Question SOLUTION: When the size of a spherical nanoparticle decreases from 30 nm to 10nm, the ratio surface area/volume becomes (A) 1/3 of the original (B) 3 times the original (C) 1/9 of the origin