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Physics
Physics
Problem
The equation of a progressive wave travelling along the
x
x
x
-axis is
y
=
A
sin
(
k
x
−
ω
t
)
y = A \sin (kx - \omega t)
y
=
A
sin
(
k
x
−
ω
t
)
, where
A
A
A
is amplitude and
k
,
ω
k,\,\omega
k
,
ω
are constants. The dimensional formula of
k
k
k
is a)
[
T
−
1
]
[T^{-1}]
[
T
−
1
]
b) Dimensionless c)
[
L
−
1
]
[L^{-1}]
[
L
−
1
]
d)
[
L
]
[L]
[
L
]
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