Electromagnetic spectrum

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Electromagnetic spectrum by Mind Map: Electromagnetic spectrum

1. Components

1.1. Radiowaves

1.1.1. Longest and smallest energy

1.1.1.1. Cannot detect without proper instruments

1.1.2. Wavelength of 1 mile (1.5 kilometer) or more.

1.1.3. Used in radio broadcasting, wireless telegraphy, telephone transmission, television, radar, navigation systems and communications

1.1.4. 10^-1 - 10^5

1.2. Microwaves

1.2.1. Longer microwaves are used in telecommunication as well as for cooking food

1.2.2. Longer microwaves are used in telecommunication as well as for cooking food.

1.2.3. 10^-3 - 10^-1

1.3. Visible light

1.3.1. Wavelengths are in the range of 1/1000 centimeter.

1.3.2. Optical fibres, medical purposes and telecommunications.

1.3.3. 10^-7

1.4. Gamma rays

1.4.1. They have the shortest wavelength in the electromagnetic spectrum of about 1/10,000,000 centimeter.

1.4.1.1. coming from nuclear reactors and atomic bombs.

1.4.2. 10^-14 - 10^-10

1.5. Ultraviolet

1.5.1. Infra-red waves

1.5.1.1. Barely visible

1.5.1.2. Thermal, radiation from the sun

1.5.1.3. 10^-7 - 10^-3

1.5.2. Invisible to the human eye, however, some insects , like bumblebees, can see them.

1.5.3. 10^-8 - 10^-7

1.6. X-ray

1.6.1. 10^-13 - 10^-8

1.6.2. Use

1.6.2.1. Medical / Dental Inspections

1.6.2.2. Checking Welds

2. Electromagnetic Waves

2.1. Transfer Energy from one place to another

2.2. They are Transverse Waves

2.3. Travel Through Vacuum

2.4. Travel Through Vacuum with the Speed of 3X10^8

2.5. All show wave properties

2.5.1. Reflection

2.5.2. Refraction

2.6. Obey the wave Equation v=f(namda)