Wave Nature Of Matter
Chapter Name : Dual Nature Of Radiation And Matter |
Sub Topic Code : 101_12_11_08_02 |
Topic Name : Wave Nature Of Matter |
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Sub Topic Name : Photocell |
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Introduction
A photocell is a type of sensor that reacts to light or electromagnetic energy.
Pre-Requisites:
PHOTOCELL
Activity:
The photocells, inserted in the door light electric circuit, are used as automatic door opener.
Real Life Question:
What is a PHOTOCELL?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Electromagnetic energy | Electromagnetic radiation is a form of energy emitted and absorbed by charged particles which exhibits wave-like behavior. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Cameras | Light meters in photographic cameras make use of photo cells to measure the intensity of incident light. |
Real life uses :
Places to visit :
Photo studio
Practical examples around us
| Examples | Explainations |
|---|---|
| Cameras | Light meters in photographic cameras make use of photo cells to measure the intensity of incident light. |
What you learn in Theory:
A photocell is a technological application of the photoelectric effect.
What you learn in Practice:
A photocell is a technological application of the photoelectric effect.