Using Light: Diffraction

The video tutorial explains diffraction as the bending of light waves around objects, similar to how water bends around a rock. It highlights diffraction's role in everyday phenomena, such as seeing car lights before the car itself and the morning sky appearing lit before sunrise.

What is diffraction?

• The scattering of light in different directions

• The reflection of light waves off a surface

• The bending of light waves around an object

• The absorption of light by a material

Which natural phenomenon is used as an analogy to explain diffraction?

• Wind blowing through trees

• Water flowing over a waterfall

• Water bending around a rock in a stream

• Sand shifting in the desert

Why might you see the lights of an oncoming car before the car itself?

• Due to the reflection of light off the road

• Because of the diffraction of light

• Due to the car's headlights being very bright

• Because of the car's speed

What causes the morning sky to appear lit before the sun rises?

• The diffraction of light waves

• The reflection of sunlight off clouds

• The refraction of light through the atmosphere

• The scattering of light by the atmosphere

Which of the following is NOT a result of diffraction?

• Light bending around an object

• A rainbow appearing after rain

• The morning sky lighting up before sunrise

• Seeing the lights of a car before the car