Reflection, Refraction And Diffraction Flashcards by Elli Mitsi

Q

What is refraction?

A

Waves bend when they pass through a boundary

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Q

What is diffraction?

A

Waves spread out when they pass through small gaps

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Q

The light changes direction (bends) because of what?

A

Speed

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Q

The incident beam’s angle is equal to what?

A

The angle of reflection

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Q

What does the amount of diffraction depend on?

A

The size of the gap

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Q

When a wave crosses a boundary between two substances it changes what?

A

Speed

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Q

What is reflection?

A

Waves bounce off a surface

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