Interference and diffraction

Question 1

What is diffraction?

Answer 1

the spreading ou of wavs when they go through a gap or past the edge of a barrier

Question 2

What happens when there is a wide gap with diffraction

Answer 2

there is a small diffraction effect

Question 3

what happens when there is a narrow gap with diffraction

Answer 3

there is a large diffraction effect

Question 4

What is constructive interference?

Answer 4

happens when waves are in phase a path difference of one wavelength
- both go into peaks

Question 5

What is destructive interference ?

Answer 5

happens when wavs are in phase a path difference of 1/2 a path difference
- one wave goes into a peak and the other goes into a trough
- means there’s no waves as they are out of phase

Question 6

How do we move electrons further away from the nucleus?

Answer 6

we add light energy