Reflection: Specular and Diffuse

The video tutorial introduces the concepts of specular and diffuse reflection. Specular reflection occurs on flat surfaces like mirrors, where light rays reflect at the same angle they hit the surface. Diffuse reflection happens on rough surfaces, causing light to scatter in various directions. Examples of specular reflection include mirrors and smooth water, while diffuse reflection is seen in materials like fabric and wood. The video concludes by highlighting the differences between these two types of reflection.

What is the main topic discussed in the video?

• The laws of motion

• Quantum mechanics

• Reflection: Specular and Diffuse

• The theory of relativity

How do light rays behave when they hit a flat surface in specular reflection?

• They reflect at the same angle they hit the surface

• They are absorbed by the surface

• They scatter in all directions

• They pass through the surface

What happens to light rays during diffuse reflection?

• They scatter in various directions

• They pass through the surface

• They are absorbed completely

• They reflect at the same angle

Which of the following is an example of a material that exhibits specular reflection?

• A piece of wood

• A smooth mirror

• A cotton t-shirt

• A rough stone

Which of the following is NOT an example of a material that exhibits specular reflection?

• Smooth water

• Glass

• Fabric

• Cut gemstones

What type of reflection is exhibited by a cotton t-shirt?

• No reflection

• Diffuse reflection

• Total internal reflection

• Specular reflection

Why does a new t-shirt not appear shiny like a mirror?

• It reflects light at the same angle

• It does not reflect any light

• It reflects light in multiple directions

• It absorbs all light

Which of the following surfaces would most likely cause diffuse reflection?

• A polished metal surface

• A smooth glass window

• A calm water surface

• A rough wooden table

What is the key difference between specular and diffuse reflection?

• Diffuse reflection reflects light at the same angle

• Specular reflection involves scattering of light

• Diffuse reflection occurs on flat surfaces

• Specular reflection reflects light at the same angle

Which of the following is a characteristic of diffuse reflection?

• Light reflects uniformly

• Light is absorbed

• Light passes through the surface

• Light scatters in various directions