Identify the option which is correct w.r.t structure of an atom .

Options

A. As per Rutherford model if number of particles deviated by an angle of `60^(@)` is x then those deviated by `90^(@)` will be `sqrt2x`.
B. Specific charge of a particle projected towards the nucleus of atomic number 29 having a closest distance of approach is `2.9 "Å"` is `(10^(8))/(18)` C/kg if it is projected at an initial speed of `4 xx 10^(4)`.
C. In the Millikan's oil drop experiment of determing charge on the cathode ray particle , `4.8 xx 10^(-19)` C cannot be obtained as the charge on the oil drop.
D. An `alpha`-particle projected closer to the center of the atom will experience a lesser deviation as compared to the particle projected away from the center.

Answer

B