Electromagnetic Spectrum Quiz

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