The increasing order of specific charge for the following substances electron (e), proton (p) unipositive helium atom (h), neutron (n) and `alpha`-particle is correctly represented in which of the following options.

Options

A. e,n,p,h,`alpha`
B. n,h,`alpha`,p,e
C. n,`alpha`,h,p,e
D. None of the above options

Answer

B

Explanation

`q/m` =specific charge
For `eto e/(m_(e)) " " `For `He^(+)toe/(4xx1840 m_(e))`
For `P to e/(1840 m_(e))" " ` for `alpha to (2e)/(4xx1840 m_(e))`
For `n to 0 `
`n lt h lt alpha lt p lt e`