Electromagnetic Waves

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Electromagnetic Waves by Mind Map: Electromagnetic Waves

1. Components of electromagnetic waves

1.1. Microwaves

1.1.1. A misnomer

1.1.2. Wavelength range of radiation is about 1.0 mm to 1 metre

1.1.3. Purpose:

1.1.3.1. Microwave

1.1.3.2. Radar devices

1.1.3.3. Short-wave radio operators

1.1.3.4. television satellites

1.1.4. Frequency

1.1.4.1. range from 300 MHz to 300GHz

1.2. Radiowaves

1.2.1. Longest wavelength

1.2.1.1. 3.0 metres

1.2.2. Radio Frequency

1.2.2.1. range of 3 kHz to 300GHz

1.2.3. smallest energy electromagnetic waves

1.2.4. requires special instrument to detect

1.2.5. Purpose

1.2.5.1. Entertainment

1.2.5.1.1. Radio

1.2.5.1.2. Television

1.2.5.2. Recreation

1.2.5.2.1. Remote controlled toys

1.2.5.3. Exploration of space

1.2.5.3.1. small unmanned submarines

1.2.5.3.2. explore earth

1.3. Infra- red waves

1.3.1. Wavelength range

1.3.1.1. 1.00 mm to 8 x 10^-7 metre

1.3.2. Frequency

1.3.3. Purpose

1.3.3.1. TV remote control

1.3.3.2. IR laser

1.3.4. heat waves

1.4. Visible Light

1.4.1. red

1.4.1.1. low energy

1.4.1.2. 650 nm

1.4.2. violet

1.4.2.1. high energy

1.4.2.2. 400 nm

1.5. Ultraviolet

1.5.1. wavelength range

1.5.1.1. 10 nm to 400 nm

1.5.2. causes skin to turn to brown

1.5.2.1. burn with overdose of ultraviolet

1.5.3. Purpose

1.5.3.1. steriliser

1.6. X- ray

1.6.1. ability to knock electrons loose from atoms

1.6.2. Purpose

1.6.2.1. see inside body without invasive surgery

1.6.2.2. electron crystallography

1.7. Gamma rays