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The increasing order (lowest first) for ...

The increasing order (lowest first) for the value of `e//m ("charge" //"mass")` for electron(e), proton (p) neutron (n) and alpha particle `(alpha)` is

A

e,p,n,`alpha`

B

n,p,e,`alpha`

C

n,p,`alpha`,e

D

n,`alpha`,p,e

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The correct Answer is:
D
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