Question

The nature of anode rays depends upon:

• A. Nature of electrode
• B. Nature of residual gas
• C. Nature of discharge tube
• D. All of the above

Answer 1

The correct option is B Nature of residual gas

The nature of anode ray depends upon the nature of residual gases.
Use of different gases give different types of positive rays, which contain particles having different masses and different charges. Therefore, the (e/m) ratio is not constant for positive ray particles obtained from different gases.