Podcast
Questions and Answers
What type of electromagnetic radiation has the highest frequency and energy?
What type of electromagnetic radiation has the highest frequency and energy?
Which type of radiation has a longer wavelength than Visible Light?
Which type of radiation has a longer wavelength than Visible Light?
What type of radiation has a shorter wavelength than X-rays?
What type of radiation has a shorter wavelength than X-rays?
Which type of electromagnetic radiation is not classified as ionizing radiation?
Which type of electromagnetic radiation is not classified as ionizing radiation?
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What is the order of increasing wavelength in the EM spectrum?
What is the order of increasing wavelength in the EM spectrum?
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Study Notes
Electromagnetic (EM) Spectrum
Types of EM Radiation
Gamma Rays
- Highest frequency and energy among all EM radiations
- Wavelength: <10 nm
- High-energy radiation, can ionize atoms and molecules
- Used in medical treatments, sterilization, and food irradiation
X-rays
- High-energy radiation, but lower than gamma rays
- Wavelength: 10-100 nm
- Used in medical imaging (e.g., X-ray scans) and security screening
Ultraviolet (UV) Radiation
- Wavelength: 100-400 nm
- Divided into three categories: UVA, UVB, and UVC
- Causes chemical reactions, such as skin tanning and vitamin D production
- Can cause harm to living organisms, including skin cancer and cataracts
Visible Light
- Wavelength: 400-700 nm
- Visible to the human eye
- Consists of different colors, each with a specific wavelength
- Essential for vision and photosynthesis
Infrared (IR) Radiation
- Wavelength: 700-1 mm
- Low-energy radiation, felt as heat
- Used in heating, night vision, and remote sensing
- All objects emit IR radiation, which can be used to detect temperature
Radio Waves
- Wavelength: 1 mm-100 km
- Lowest frequency and energy among all EM radiations
- Used in communication, navigation, and broadcasting (e.g., radio, TV, Wi-Fi)
Microwaves
- Wavelength: 1 mm-10 cm
- Used in heating and cooking (e.g., microwave ovens)
- Also used in wireless communication, radar, and satellite transmissions
Electromagnetic (EM) Spectrum
Types of EM Radiation
Gamma Rays
- Highest frequency and energy among all EM radiations
- Wavelength: shortest among all EM radiations
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Description
Test your knowledge of the electromagnetic spectrum, including gamma rays, X-rays, and ultraviolet radiation. Learn about their properties, applications, and wavelength ranges.
