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Questions and Answers
What is the speed of light in vacuum?
What is the speed of light in vacuum?
- 294957 km/s
- 300000000 m/s
- 299792458 m/s (correct)
- 310000000 m/s
Which range of wavelengths is usually defined as visible light?
Which range of wavelengths is usually defined as visible light?
- 200–500 nanometres (nm)
- 100–300 nanometres (nm)
- 400–700 nanometres (nm) (correct)
- 800–1000 nanometres (nm)
What are the primary properties of light?
What are the primary properties of light?
- Intensity, propagation direction, frequency or wavelength spectrum, and polarization (correct)
- Velocity, amplitude, frequency, and phase
- Frequency, wavelength, speed, and energy
- Refraction, diffraction, interference, and polarization
What represents the quanta of electromagnetic field for visible light?
What represents the quanta of electromagnetic field for visible light?
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What is the study of light known as?
What is the study of light known as?
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