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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
- 299792458 m/s (correct)
- 310000000 m/s
- 300000000 m/s
Which wavelengths are usually defined as visible light?
Which wavelengths are usually defined as visible light?
- 200–500 nanometres (nm)
- 100–1000 nanometres (nm)
- 400–700 nanometres (nm) (correct)
- 600–800 nanometres (nm)
What are the primary properties of light?
What are the primary properties of light?
- Energy, velocity, frequency, and amplitude
- Intensity, propagation direction, frequency or wavelength spectrum, and polarization (correct)
- Refraction, diffraction, reflection, and absorption
- Color, speed, frequency, and amplitude
What are the massless elementary particles through which visible light propagates?
What are the massless elementary particles through which visible light propagates?
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In physics, what may the term 'light' refer to?
In physics, what may the term 'light' refer to?
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What is the speed of light in vacuum?
What is the speed of light in vacuum?
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Which wavelengths are usually defined as visible light?
Which wavelengths are usually defined as visible light?
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What are the primary properties of light?
What are the primary properties of light?
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What are photons?
What are photons?
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In physics, what does the term 'light' refer to?
In physics, what does the term 'light' refer to?
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