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 $\theta_{r}$ 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