Diffraction

what is diffraction

• is a soild liquid gass

• is a beam of light that is spread out and passes through an object

• a beam of light

A wave of constant wavelength diffracts as it passes through an opening in a barrier. As the size of the opening is increased, the diffraction effects

• decrease

• increase

• remain the same

This image is representing what wave interaction?

• Refraction
• Diffraction
• Reflection
• Interference

Tags

NGSS.MS-PS4-2

What happens to the frequency of a wave as it passes through a gap？

• Increases

• Decreases

• No change

• None of above

What is the main difference between refraction and diffraction?

• refraction is a phenomenon that affects light; diffraction is a phenomenon that affects sound
• refraction involves the bending of light; diffraction involves the bending and spreading of light, usually around an obstacle

What would you call this?

• Reflection

• Diffraction

• Refraction

• Friction

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What would you call this?

• Refraction

• Diffraction

• Bends

• Reflection

Tags

NGSS.MS-PS4-2

witch picture is diffraction

• 
• 
• 
• 

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Does the wave speed change after diffraction？Explain it.

• Yes. It slows down.

• Yes. It speeds up.

• No. There is nothing change about the medium.

• No. Because the frequency doesn't change.