The nature of anode rays does not depend on the nature of gas taken in the discharge tube.
Positive particles in anode rays have e/m values much smaller than that of an electron. This means either m is high or the value of the charge is small in comparison to the electron. Since the positive particle is formed by the loss of electrons or electrons, the charge on the positive particle must be an integral multiple of the charge present on the electron.
Hence, for a smaller value of e / m, it is definite that positive particles possess a high mass. e / m value is dependent on the nature of the gas taken in
the discharge tube, positive particles are different in different gases.
Hence, the given statement is false.