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Summary AQA A Level Physics Waves and Optics revision notes
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In depth notes on Waves including examples.
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JProgressive Stationary & Waves : Stationary Waves :
. kinds of interference
2 :
Superposition -
displacements of I waves recultant displacement is Constructive Interference Occur whe
:
Progressive
T
-transfers without of each
waves
energy combined they pass the vector
displac
:
as sum waves
-
are have
transferring
↳ made material each other displacement
E dire
up of of
particles
medium Destructive Interference When :
one
a
oscinating
displacement&d
negative displa
↳ if waves
opposite displa
destructive inte
↳ stationary wave is formed from the
2 waves
Two
points are in phase when
2
points have same progresive
directions
displacement& velocity phase difference /2 radians ↳ travelling oppositie in the s
:
-
> =
360 in
↳ don't ↳ with SAME F X &A
need same
amplitude >
Only same fox
-
,
NO ENERGY IS TRANSFERRED BY A
of half
Two points are
completely out of phase -> odd
When integer cycles apart
Waves & when waves meet imphace
Optics ↳ constructive interference o
c =
fx
↳
autodes are formed (
f
= m
When waves meet and
phase
Longitudinal & Transverse waves
↳ distructive interpherence
&
to direction of
&
Transverses right angle ↳
des are formed
(reg
transfer
f
=Ten
energy
Memwaves travel at 3x108ms in
XIRMONIC
-
avacuum ↑
perunit
: of length
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