Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
For the stationary wave on a stretched string given by
y
=
2
A
sin
(
k
x
)
cos
(
ω
t
)
y = 2A\sin(kx)\cos(\omega t)
y
=
2
A
sin
(
k
x
)
cos
(
ω
t
)
, the positions of zero displacement satisfy a)
k
x
=
(
n
+
1
2
)
π
kx = \left(n+\dfrac12\right)\pi
k
x
=
(
n
+
2
1
)
π
b)
k
x
=
n
π
kx = n\pi
k
x
=
nπ
c)
k
x
=
n
π
2
kx = \dfrac{n\pi}{2}
k
x
=
2
nπ
d)
k
x
=
(
2
n
+
1
)
π
kx = (2n+1)\pi
k
x
=
(
2
n
+
1
)
π
Browse the problem library