Electromagnetic waves

1. Transfer energy from one place to another

2. Transverse

3. Sources and applications

3.1. Gamma rays

3.1.1. emitted by nucleus of radioactive atoms

3.1.2. sterilize medical instruments

3.1.3. kills cancerous cells

3.2. X rays

3.3. Ultra violet rays

3.4. Visible light

3.5. Infrared

3.6. Microwaves

3.7. Radio waves

4. Obeys law of refraction and reflection

5. Obey wave equation

5.1. • v = λ f

6. Speed

6.1. 3x10^8m/s

7. Wavelength

7.1. Increases

7.1.1. Low frequency

7.2. Decreases

7.2.1. High frequency