Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
|
What happens to a wave when its refracted? |
It goes through a new material but changes direction |
|
|
What happens to a wave when its diffracted? |
Bends round obstacles, causing the waves to spread out |
|
|
How much diffraction is there when the gap is much wider than then wavelength? |
Little diffraction |
|
|
How much diffraction is there when the gap is a bit wider than the wavelength? |
Diffraction only at the edges |
|
|
How much diffraction is there when the gap is the same as the wavelength? |
Maximum diffraction |
|
|
What happens to a wave when it hits the boundary between two substances of an object face on? |
Carries on the same direction |
|
|
What happens to a wave if it hit the boundary between two substances at an angle? |
The wave changes direction- its been refracted |
