Electromagnetic Waves

Things to remember

• Electromagnetic waves are the waves which carry energy by the variations of electric and magnetic fields.
• Visible light is defined as the form electromagnetic radiation or wavelength that are visible to human eye.
• . The wavelength of infrared radiation ranges from 10^-5m to 5 \(\times\) 10^-3m. 
• Ultraviolet radiation is a form of electromagnetic radiation with wavelength ranging from 5 \(\times\) 10^-9m to 5 \(\times\) 10^-7m.
•  The wavelength of X-rays andγ- rays ranges below 5 \(\times\) 10^-8m. 
• X- rays are produced by electrons. X- rays are used in hospitals for medical purpose. Gamma rays are used in medical field to cure cancer.