The bare nuclei of 1H and of 4He are between the plates, ... ...

   The bare nuclei of 1H and of 4He are between the plates, and both are at rest. How does the magnitude of the acceleration of the hydrogen nucleus aH compare with the magnitude of the acceleration of the helium nucleus aHe?
(A) aH = 1/4 aHe
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 16. Atomic and Nuclear Physics