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Questions  

The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom (both in ground state) is

a
1
b
8
c
4
d
16

detailed solution

Correct option is B

a=v2r ∴ a∝(z)2(1/z) ( for n=1) or   a∝z3 ∴ a1a2=213=8

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