The radius of a sphere decreases from 10 cm to `9.9` cm. Find (i) approximate decrease in its volume. (ii) approximate decrease in its surface.
Answered Feb 05, 2023
Correct Answer - `(i) 40 pi cm^(3) (ii) 8 pi cm^(2)`
Correct Answer - `-(Q^(2))/(16pi in_(0)R)`
Correct Answer - At a distance `(5R)/(6)` from the nearest wall
Correct Answer - `(1)/(5)qwr^(2),(q)/(2m)`
Correct Answer - `1.08xx10^(6)V,1.08xx10^(6)V`
Correct Answer - 36 kV, 3kV, 6kV
Correct Answer - 5 cm of the left of the surface of sphere
Correct Answer - ` 4500 pi cm^(3)`
Correct Answer - `269.5 cm^(3)`
Correct Answer - (i) `179.67 cm^(3), 154 cm^(2)` (ii) `310.464 cm^(3), 221.76 cm^(2)` (iii) `523.81 m^(3), 314.28 m^(2)`
Correct option is D)R/n – 1
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