TYPES OF ELECTROMAGNETIC RADIATION

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TYPES OF ELECTROMAGNETIC RADIATION by Mind Map: TYPES OF ELECTROMAGNETIC RADIATION

1. RADIO (<250 mhZ)

1.1. SOURCES: oscillating eletric currents, cosmic sources.

1.2. DETECTORS: eletronic circuits.

1.3. EFFECTS: oscillating electric currents.

1.4. USES: telecommunications, the use of radio frequencies is regulated.

2. MICROWAVE (250 MHz - 300 GHz)

2.1. SOURCES: magnetrons and masers, cosmic sources.

2.2. DETECTORS: electronic circuits.

2.3. EFFECTS: oscillating electric currents, heating effect.

2.4. USES: radar, microwawe ovens, mobile phone.

3. X-RAYS (30 PHz - 300 EHz)

3.1. SOURCES: Sun, stars, other cosmic sources, electron bombardment of metal.

3.2. DETECTORS: photographic film, fluorescent materials, indirectly by detecting ionisation.

3.3. EFFECTS: cancers and genetic mutation, demaging electronic equipment.

3.4. USES: x-rays photos,destrying cancerous cells , checking metal joints in structures.

4. VISIBLE LIGHT (428 THz - 749 THz)

4.1. SOURCES: hot or burning, sun and stars, electrical discharge , fluorescent materials laser.

4.2. DETECTORS: eyes, photographic film, photoeletric cell.

4.3. EFFECTS: chemical reactions, photosynthesis, human vision.

4.4. USES: vision, photography television, power generation, lasers, fribre-optic.

5. ULTRAVIOLET (749 THz) - 30PHz)

5.1. SOURCES: extremely hot objects,sun and stars,flourescent materials, ultraviolet laser, electrical discharge.

5.2. DETECTORS: insect eyes, electronic devices,fluorescent materials.

5.3. EFFECTS: damage skin ,cancers, killing bacteria and viruses.

5.4. USES: sterilisation in hospital, vision in insect.

6. INFRARED (300 GHz - 428 THz)

6.1. SOURCES: hot objects, infrared laser.

6.2. DETECTORS: heat sensor, thermal imaging sensor, special photographic film.

6.3. EFFECTS: warming

6.4. USES: heaters and cookers, medical treatment of skin problem, night vision devices and thermal imaging cameras.

7. GAMMA RAYS (> 300 EHz)

7.1. SOURCES: Sun, stars, other cosmic sources, nuclear reactions.

7.2. DETECTORS: photographic film, fluorescent materials, indirectly by detecting ionisation.

7.3. EFFECTS: causes damage and mutations to cells and even death.

7.4. USES: checking dense structures for faults, destroying cancerous cells.