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Questions and Answers
What are the primary properties of light?
What are the primary properties of light?
- Diffraction, interference, reflection, and absorption
- Speed, color, temperature, and refraction
- Electric charge, mass, velocity, and acceleration
- Intensity, propagation direction, frequency or wavelength spectrum, and polarization (correct)
Which source has historically been an important source of light for humans?
Which source has historically been an important source of light for humans?
- Fire (correct)
- The Sun
- Electric lights
- Kerosene lamps
What is the speed of light in vacuum?
What is the speed of light in vacuum?
- 250000000 m/s
- 299792458 m/s (correct)
- 350000000 m/s
- 300000000 m/s
What represents the quanta of electromagnetic field?
What represents the quanta of electromagnetic field?
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Which range of wavelengths is usually defined as visible light?
Which range of wavelengths is usually defined as visible light?
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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 range of frequencies corresponds to visible light?
Which range of frequencies corresponds to visible light?
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What are the primary properties of light?
What are the primary properties of light?
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Which electromagnetic radiation may also be referred to as light in physics?
Which electromagnetic radiation may also be referred to as light in physics?
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What is the main source of natural light on Earth?
What is the main source of natural light on Earth?
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