Note 13 Aug 2021

Diffraction spreading of waves

1 when propagating
through a slit sides

of barrier

VA

fI

v decreases wave

A energy diverges

spread to wider

region many
dOifrecptrioognationfrom l

HMI propagation

wavefront

Wavefront
spreads
diffraction T size slit Ed
Z
after slit
tf

circular after slit

waves slightly bent at

the edges

WAVE YI 3LIGHT diffraction

I barrera
slit 11 obstacle

RIPPLE

TANK

I wave
wave

7T narrow sur cen
swipe slit diffraction
area
O Bilge
Energy
sligdhtly bent at
spreads

y outfit

sdpifrferaacdtsioountamore

the edges

SHORT A V FA fipf 542

50172

slightlybent

at theedges

AT

diffracted

wave spreads
out more

airway

diffracted
OBSTACLEA BARRIER

II I III i'ill

I
lidgihfftraiscted

giggle

slit O

pinhole

WALL BARRIER

FROM ABOVE

PICKETT

Sound can be heard at Y X

found is diffracted speaker

can be heard when

D

3
D

ME it FD

DPP

I D.it t

yw nsemeadlsl svleitry
SOUQIa
WATER T

freq motor 400 nm v 330ms

diffraction axiom M 3mm
V 3 108 Mj
a
slit a diffraction

size slit of door 9

DID

157m

I

N T easily diffracted
spreads out more
thank
circular wave diffracted