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Electromagnetic waves - Coggle Diagram
Electromagnetic waves
Infra-red (IR)
Intruder alarm for security checking
Motional sensors
Human body
Gives infrared radiations due to rotational vibrational motion of atoms / molecules
Wireless remote controllers
Video recorder
High fidelity (Hi-FI)
Television
Military technology
Micro waves
Satellite phone
Used for communication
Satellite television
Use to receive satellite television programs
Microwave ovens
Use to re-heat /bake food
ULTRA-VOILET (UV)
Fluorescents tubes
Decoration purpose
Watch dail
UV White powdered bulb
Sterilization
Kills harmful bacterias
Sterilize food
Medical equipment
Sunbeds
Medically controlled to treat skin conditions
Artificial tanning
Radio waves
Very high frequency (VHF)
Example: Television broadcasting
Travel longer but in straight line
Ultra high frequency (UHF)
Example: mobile phones
Travel shorter but in both curve and straight path
Visible light (spectrum)
Endoscope
Long optical fibre tube use to see abnormalities in human organs
Telephones
X-Rays
Industrial X-rays
Industrial rediography
To detest the defect in materials
Madical x-rays
Computed tomography (CT) scan
Use to detect disease in 3D images
X-Ray of soft tissues
X-Ray of bones
Radiation therapy
Treatment of cancer
kill cancerous cells
Shrink tumors
X-Rays graphy
Use to diagnose disease
Bone fracture
Tumor
Tooth decay
Abnormalities in organs