5 Questions
What is the speed of light in vacuum?
299,792,458 m/s
What are the primary properties of light?
Intensity, propagation direction, frequency or wavelength spectrum, and polarization
Which electromagnetic radiation can be considered as light?
Gamma rays
What is the range of wavelengths for visible light?
400–700 nanometres (nm)
What is the main source of natural light on Earth?
The Sun
Test your knowledge about the properties and characteristics of visible light and electromagnetic radiation, from wavelengths to frequencies and beyond.
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