Question

Statement I : On increasing the current in the circuit, the maximum speed with which electrons reach the anode does not change.

Statement II : The accelerating potential between the anode and the cathode is independent of the filament circuit.

• A. Both the statements are correct and statement II infers to Statement I
• B. Both the statements are correct but statement II does not infer to statement I
• C. Both the statements are incorrect
• D. Statement I is correct but Statement II is incorrect

Answer 1

The correct option is A

Both the statements are correct and statement II infers to Statement I

Since the filament circuit and the accelerating potential circuit are independent of each other, any change in the current (the filament circuit) does not affect the speed of the electrons which is regulated by the acceleration potential between anode and the cathode.