A beam of specific kind of particles of velocity `2.1 xx 10^7` m/s is scattered by a gold (z = 79) nucleli, Find out specific charge (charge/mass) of this particle if the distance of closet approach is `2.5 xx 10^(-14)` m.
A
`4.84xx10^(7)` C/kg
B
`4.84xx10^(-7)` C/kg
C
`2.42xx10^(7)` C/kg
D
`3xx10^(-12)` C/kg
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