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Questions and Answers
What is the speed of light in vacuum?
What is the speed of light in vacuum?
- 299,792,458 m/s (correct)
- 300,000,000 m/s
- 400,000,000 m/s
- 200,000,000 m/s
What are the primary properties of light?
What are the primary properties of light?
- Intensity, propagation direction, frequency or wavelength spectrum, and polarization (correct)
- Wavelength, speed, intensity, and polarization
- Intensity, color, frequency, and propagation direction
- Color, speed, frequency, and polarization
Which electromagnetic radiation can be considered as light?
Which electromagnetic radiation can be considered as light?
- Cosmic rays
- Sound waves
- Gamma rays (correct)
- Pressure waves
What is the range of wavelengths for visible light?
What is the range of wavelengths for visible light?
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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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