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12th Class Physics
Short Questions Preparation
Start Chapter 18 Preparation
12th Class Physics Chapter Wise Preparation
Online Short Questions For Chapter 7 "ICS Part 2 Physics Chapter 18 Short Questions Preparation "
Try The Short Questions For ICS Part 2 Physics Chapter 18 Short Questions Preparation
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Total Questions10
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Available Sets3
Physics - ICS Part 2 Physics Chapter 18 Short Questions Preparation
Question # 1
What is photovoltaic cell?Discuss its working?
- Ans 1: It consists of a thick n type region covered by a thin p-layer type.When exposed to light,it absorbs photon which generated electron-hole pairs.The electric field at the junction moves electron and holes and a current flow through the external circuit.And this current is directly proportional to the intensity of light.
ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 1
Question # 1
What is photovoltaic cell?Discuss its working?
- Ans 1: It consists of a thick n type region covered by a thin p-layer type.When exposed to light,it absorbs photon which generated electron-hole pairs.The electric field at the junction moves electron and holes and a current flow through the external circuit.And this current is directly proportional to the intensity of light.
ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 2
Question # 1
Write a note on LED.
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Ans 1: Light emitting diode are made from the special semiconductor such as gallium arsenide and gallium arsenide phosphide in which the potential barrier between p and n side is such that when electrons combines with a hole during forward biased conduction,a photon of visible light is emitted.LED are used in 7-segment display,small light sources etc.
ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 3
Question # 1
Write a note on LED.
-
Ans 1: Light emitting diode are made from the special semiconductor such as gallium arsenide and gallium arsenide phosphide in which the potential barrier between p and n side is such that when electrons combines with a hole during forward biased conduction,a photon of visible light is emitted.LED are used in 7-segment display,small light sources etc.
