HARD
12th Odisha Board
IMPORTANT
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In a triode, cathode, grid and plate are at 0 , -2 and 80V respectively. An electron is emitted from the cathode with energy of 3 eV. The energy of the electron reaching the plate is 

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Important Questions on Electron Emission

HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 23
The amplification factor of a triode is 20 and load resistance is equal to plate resistance. What is the output voltage if input voltage is 10mV
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 24
If the plate resistance is half of load resistance, what be the voltage gain if the amplification factor is 30?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 1
What is thermionic emission?
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 2
By what equation thermionic equation is explained?
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 3
What is meant by the work function of a metal?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 4
What is the significance of a work function in thermionic emission?
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 5
Write Richardson-Dushman equation of thermionic equation?
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 6
What are different methods of obtaining electron emission?