Which of the following statement is INCORRECT.

Options

A. `(e)/(m)` ratio for canal rays is maximum for hydrogen ion.
B. `(e)/(m)` ratio for cathode rays is independent of the gas taken.
C. The nature of canal rays is dependent on the electrode material.
D. The `(e)/(m)` ratio for electron is expressed as `(E^(2))/(2B^(2)V)`, when the cathode rays go undeflected under the influence of electric field `(E)`, magnetic field `(B)` and `V` is potential difference applied across electrodes.

Answer

C

Explanation

Energy order decide from `(n+l)` rule , `(n+l)` is minimum energy is minimum , if `(n+l)` value is equal, lower the value of `n` lower the energy.
`e3gte2gte4gte1`