1. Gamma Rays
1.1. Highest Frequency
1.2. Shortest Wavelength
1.3. Used to
1.3.1. Treat Cancer Patients
1.3.2. Sterilise Medical Tools
1.4. Emitted During
1.4.1. Radioactive Decay of Unstable Atoms or Isotopes (Nuclear Radiation)
1.5. Dangers
1.5.1. Damages Living Cells
2. X-Rays
2.1. High Frequencies
2.2. High Penetrating Capabilities Through Many Materials
2.3. Used to
2.3.1. Produce Images of Bone Structures
2.4. Dangers
2.4.1. Damages Living Cells
2.4.2. Causes Cancer
3. Ultra-Violet Rays
3.1. Used For
3.1.1. Checking Counterfeit Notes
3.1.2. Killing Bacteria
3.1.3. Producing Suntan
3.2. Obtained From
3.2.1. The Sun
3.3. Dangers
3.3.1. Causes Sunburn
3.3.2. Results In Skin Cancer
4. Visible Light
4.1. Colours of light
4.1.1. Violet (Highest Frequency)
4.1.2. Indigo
4.1.3. Blue
4.1.4. Green
4.1.5. Yellow
4.1.6. Orange
4.1.7. Red (Lowest Frequency)
4.2. Produced by Luminous Objects
4.3. Used For
4.3.1. Optical Fibres
4.3.2. Light Photography
4.3.3. Endoscopy
5. Infra-Red Rays
5.1. Used For
5.1.1. Remote Controls for Household Appliances
5.1.2. Thermal Imaging
6. Properties
6.1. Formed without molecules
6.2. Do not require a medium
6.3. Components travel at a constant speed of 3 x (10 to the power of 8) m/s
6.4. Components obey the laws of reflection and refraction
6.5. Transfer energy from one place to another
6.6. Are transverse waves
6.7. Obey the wave equation
7. Microwaves
7.1. Short Wavelengths
7.2. Used For
7.2.1. Ovens
7.2.2. Satellite Transmissions
7.2.2.1. Include Communication Through Mobile Devices
8. Radio Waves
8.1. Lowest Frequency
8.2. Longest Wavelength
8.3. Used For
8.3.1. Radio Broadcasting
8.3.2. TV Broadcasting