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Tardigrade
Question
Physics
Among the following, the equation which represents a progressive wave is
Q. Among the following, the equation which represents a progressive wave is
2524
220
NTA Abhyas
NTA Abhyas 2020
Waves
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A
y
=
A
cos
a
x
s
inb
t
12%
B
y
=
A
s
inb
t
9%
C
y
=
A
cos
(
a
x
+
b
t
)
76%
D
y
=
A
t
an
(
a
x
+
b
t
)
2%
Solution:
If after
t
time, displacement of particle is
y
, then the equation of progressive wave
Y
=
A
cos
(
a
x
+
b
t
)