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Tardigrade
Question
Physics
The equation of a resultant wave obtained after superposition of two waves is given by y(x, t)=2 a sin k x cos ω t. The position of nodes will be given by
Q. The equation of a resultant wave obtained after superposition of two waves is given by
y
(
x
,
t
)
=
2
a
sin
k
x
cos
ω
t
. The position of nodes will be given by
471
139
Waves
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A
sin
k
x
=
−
1
11%
B
sin
k
x
=
0
56%
C
sin
k
x
=
1
11%
D
sin
k
x
=
2
nπ
22%
Solution:
From the equation
y
(
x
,
t
)
=
2
a
sin
k
x
cos
ω
t
the position of nodes (where amplitude is zero) are given by
sin
k
x
=
0
or
k
x
=
nπ
where
n
=
0
,
1
,
2
,
3
,
…