Reflection, Refraction & Diffraction Flashcards
1
Q
How do we see objects?
A
Due to reflection.
2
Q
Draw the image of a plane mirror reflection
A
3
Q
When light goes through a more dense object, what happens?
A
The ligh bends toward the normal.
4
Q
What is diffraction?
A
When a wave travels through a gap or an edge, it spreads out.
5
Q
Why can i hear round a corner, but not see round a corner?
A
Wavelenth of light is too small to be diffracted round a corner or gap. However, sound waves can easily be diffracted round a corner or gap.
6
Q
What happens with diffraction in a large gap?
A
The waves spead out by a small amount.
7
Q
what happens with diffraction in a small gap?
A
The waves spread out by a large amount.
