Assertion (A): When cathode temperature is increased from 2500 K to 2550 K, thermionic emission current may increase by about 50%.Reason (R): Thermionic emission current ∝ T² e^(-Ew/kT).

Question

Assertion (A):  When cathode temperature is increased from 2500 K to 2550 K, thermionic emission current may increase by about 50%.Reason (R):  Thermionic emission current ∝ T² e^(-Ew/kT).

TuteeHUB · Accepted Answer

Both A and R are true but R is not correct explanation of A

TuteeHUB · Answer

Both A and R are true and R is correct explanation of A

TuteeHUB · Answer

A is true but R is false

TuteeHUB · Answer

A is false but R is true

1.	Assertion (A): When cathode temperature is increased from 2500 K to 2550 K, thermionic emission current may increase by about 50%.Reason (R): Thermionic emission current ∝ T² e^(-Ew/kT).
A.	Both A and R are true and R is correct explanation of A
B.	Both A and R are true but R is not correct explanation of A
C.	A is true but R is false
D.	A is false but R is true
Answer» B. Both A and R are true but R is not correct explanation of A

Assertion (A): When cathode temperature is increased from 2500 K to 2550 K, thermionic emission current may increase by about 50%.Reason (R): Thermionic emission current ∝ T² e^(-Ew/kT).

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