Visible Light (T)

• What are the two types of reflection described in the video?

  Specular and diffuse reflection
• What is specular reflection?

  Reflection on smooth surfaces that produces an image
• What is diffuse reflection?

  Reflection on rough surfaces that does not produce an image
• How does the color of an object depend on light?

  • Depends on wavelengths of light absorbed, transmitted, or reflected
  • White light is a mixture of all colors
  • Each color has a specific wavelength and frequency
• What happens when white light passes through a prism?

  It splits into a spectrum of colors.
• What role do colored filters play in light transmission?

  They absorb specific wavelengths and transmit others.
• What color light is transmitted through a red filter when white light is shone on it?

  Red light
• How do transparent and translucent objects differ in terms of light?

  Transparent objects allow clear passage of light; translucent objects scatter light.
• What are opaque objects?

  Objects that do not allow any light to pass through.
• How does a white object appear under white light?

  • Reflects all wavelengths of visible light equally
  • Appears white
• Why does a black object appear black under white light?

  • Absorbs all wavelengths of visible light
  • Reflects no light
• What happens to a red object under white light?

  • Absorbs all colors except red
  • Reflects red light, appearing red
• What happens to a blue object under white light?

  • Absorbs all colors except blue
  • Reflects blue light, appearing blue
• What occurs when a green object is placed under a red filter?

  • Green object absorbs red light
  • Appears black as it reflects no light