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Thermionic emission from a heated filame...

Thermionic emission from a heated filament varies with its temperature `T` as

A

`T^(-1)`

B

`T`

C

`T^(2)`

D

`T^(3//2)`

Text Solution

Verified by Experts

The correct Answer is:
C
According to Richardson-Dushman equation, number of thermions emitted per sec unit area `J=AT^(2) e^(-W0//kT) implies J propT^(2)`
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