Developments Leading To The Bohr's Model Of Atom
Chapter Name : Structure Of Atom |
Sub Topic Code : 102_11_02_03_01 |
Topic Name : Developments Leading To The Bohr's Model Of Atom |
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Sub Topic Name : Wave Nature Of Electro Magnetic Radiation |
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Introduction
James Maxwell proposed that light is an electromagnetic wave. When a charged particle moves under acceleration alternating electrical and magnetic fields are produced. Wave speed = frequency X wavelength Electromagnetic spectrum shows difference in wavelength and frequency of different types of electromagnetic radiation.
Pre-Requisites:
Wave, radiation
Activity:
In the microwave oven, food cooks faster.
Real Life Question:
Why do microwave ovens cook faster than conventional ovens?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Electromagnetic spectrum | Electromagnetic spectrum shows difference in wavelength and frequency of different types of electromagnetic radiation. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Microwave oven | Microwave oven cooks food faster as it works on microwaves which are short frequency waves. |
Real life uses :
Microwave Oven, X-rays for pathology.
Places to visit :
Kitchen.
Practical examples around us
| Examples | Explainations |
|---|---|
| Microwave oven | Uses microwaves for cooking. |
What you learn in Theory:
James Maxwell proposed that light is an electromagnetic wave. When a charged particle moves under acceleration alternating electrical and magnetic fields are produced. Wave speed = frequency X wavelength Electromagnetic spectrum shows difference in wavelength and frequency of different types of electromagnetic radiation.
What you learn in Practice:
Electromagnetic spectrum has waves with varying wavelength bands.