Question

State True or False.

The $\frac{e}{m}$ ratio of cathode rays is different for different gases.

• A. True
• B. False

Answer 1

The correct option is B False

Cathode rays are stream of electrons and the e/m ratio of an electron is same for all gases and is given as: $\frac{1.6\times {10}^{-19}}{9.1\times {10}^{-31}}$