Question

In cathode ray experiment, in discharge tube $1$, hydrogen gas is taken in tube $2$ helium gas is taken will there by any difference in the $\frac{e}{m}$ value of anode rays?

Answer 1

Anode rays are produced by the electricity that hits the protons of the gases used in the discharge tube different gases have different number of protons and have the different mass so definitely there will be difference in the $\frac{e}{m}$ value of anode rays