QUESTION 9 The mathematical form of a wave packet formed by linear superposition of sinusoidal waves with constant amplitude A and wave numbers in the range k - Ak to k+ A k " is: •x + Ax ) a. y(x,t) = Acos (k't – @ 't) dk x- Ax O b. y (x,t) = rk+ Ak Acos (k'x – 't) dk k- Ak С. *w + Aw y(x,t) = Acos (k'x – w't) dw' w - Aw d. Ci+At y(x,t) = Acos (k'x – w't) dt' 1- At
QUESTION 9 The mathematical form of a wave packet formed by linear superposition of sinusoidal waves with constant amplitude A and wave numbers in the range k - Ak to k+ A k " is: •x + Ax ) a. y(x,t) = Acos (k't – @ 't) dk x- Ax O b. y (x,t) = rk+ Ak Acos (k'x – 't) dk k- Ak С. *w + Aw y(x,t) = Acos (k'x – w't) dw' w - Aw d. Ci+At y(x,t) = Acos (k'x – w't) dt' 1- At
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Transcribed Image Text:QUESTION 9
The mathematical form of a wave packet formed by
linear superposition of sinusoidal waves with
constant amplitude
A
and wave numbers in the
range k - Akto k + A k Is:
x + Ax
а.
w (x,t) =
Acos (k't- @'t) dk
X- Ax
b.
ck+ Ak
y(x,t) =
Acos (k'x – @'t) dk"
k- Ak
w + Aw
C.
y(x,t) =
Acos (k'x – @ 't) do'
ω-Δω
O d.
y(x,t) =
Acos (k'x – @'t) dt'
1- At
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