question_answer

Assertion : A diode valve allows the electrons to flow in one direction only. Reason (R): The anode emits more electrons per second at higher temperature.

A)  If both A and R are true and R is the correct explanation of A.

B)  If both A and R are true but R is false.

C)  If A is true but R is false

D)  If both A and R are false

E)  If A is false but R is true