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Unit 10 · Wave

Applications of Electromagnetic Waves Presentation

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Science and Technology, Class 9: Unit 10

Applications of Electromagnetic Waves

Seven waves · Radio to gamma · Kitchen to hospital

In Order of Increasing Energy

1
Radio waves
2
Microwaves
3
Infrared
4
Light
5
Ultraviolet
6
X-rays
7
Gamma rays

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Presenter notes: Today we look at what each of the seven electromagnetic waves does in daily life. Before starting, ask students to recall the devices they have used since morning.