6.3.1 Reflection of Waves

    Cards (27)

    • What is reflection in waves?
      Waves bounce back
    • According to the Law of Reflection, the angle of incidence equals the angle of reflection
    • The incident ray, reflected ray, and normal all lie in the same plane.
    • What type of reflection occurs on smooth surfaces?
      Specular
    • Specular reflection maintains a clear reflected image
    • Diffuse reflection scatters light from rough surfaces.
    • Match the type of reflection with its surface type and image quality:
      Specular ↔️ Smooth, Clear
      Diffuse ↔️ Rough, Scattered
    • What is the mathematical relationship between the angle of incidence and the angle of reflection?
      \theta_{i} = \theta_{r}</latex>
    • Specular reflection is commonly seen in mirrors
    • Diffuse reflection occurs on rough walls.
    • What type of surface is required for specular reflection?
      Smooth
    • Specular reflection produces a clear reflected image
    • What does the symbol θr\theta_{r} represent in reflection?

      Angle of reflection
    • The incident ray, reflected ray, and normal all lie in the same plane.
    • Specular reflection occurs on smooth surfaces.
    • What type of image is produced by diffuse reflection?
      Scattered
    • The angle of incidence equals the angle of reflection in specular reflection.
    • Diffuse reflection occurs on rough surfaces.
    • Which type of reflection is demonstrated by a mirror?
      Specular
    • Specular reflection produces a clear image.
    • Match the type of reflection with its characteristics:
      Specular ↔️ Smooth surface, clear image
      Diffuse ↔️ Rough surface, scattered image
    • What type of surface scatters light to prevent a clear image?
      Rough
    • The two laws of reflection apply to light waves.
    • What is the relationship between the angle of incidence and the angle of reflection in light waves?
      They are equal
    • Sound waves are reflected when they bounce back from a surface or barrier.
    • Specular reflection of sound waves occurs on smooth surfaces, maintaining their direction.
    • What type of reflection is used in padded walls to reduce echoes?
      Diffuse