Light and Electromagnetic Radiation Quiz

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Questions and Answers

What is the range of wavelengths typically defined as visible light?

  • 400-700 nm (correct)
  • 700-1000 nm
  • 300-500 nm
  • 600-800 nm

What are the primary properties of light in physics?

  • Intensity, propagation direction, and frequency or wavelength spectrum (correct)
  • Intensity, diffusion, and reflection
  • Frequency, refraction, and polarization
  • Color, speed, and energy

What is the speed of light in vacuum, which is considered a fundamental constant of nature?

  • 100,000,000 m/s
  • 299,792,458 m/s (correct)
  • 500,000,000 m/s
  • 1,000,000,000 m/s

Which electromagnetic radiation is also considered as light in physics?

<p>X-rays (D)</p> Signup and view all the answers

What is the main source of natural light on Earth?

<p>The Sun (C)</p> Signup and view all the answers

Which type of electromagnetic radiation is considered as light in physics?

<p>Gamma rays (D)</p> Signup and view all the answers

What are the primary properties of light in physics?

<p>Intensity, propagation direction, and frequency or wavelength spectrum (B)</p> Signup and view all the answers

What are photons?

<p>Massless particles that represent the quanta of the electromagnetic field (C)</p> Signup and view all the answers

What is the speed of light in vacuum?

<p>299792458 m/s (B)</p> Signup and view all the answers

What is the main source of natural light on Earth?

<p>The Sun (B)</p> Signup and view all the answers

What is the law of reflection for specular reflection?

<p>The angle of incidence equals the angle of reflection (C)</p> Signup and view all the answers

In what ways is reflection observed with electromagnetic waves?

<p>All types of electromagnetic waves (A)</p> Signup and view all the answers

What is the primary model for specular light reflection?

<p>A glass sheet with a metallic coating (D)</p> Signup and view all the answers

Which type of reflection retains the energy but loses the image?

<p>Diffuse reflection (B)</p> Signup and view all the answers

Why is reflection important in acoustics?

<p>To create echoes (B)</p> Signup and view all the answers

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