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Byju's Answer
Standard XII
Physics
Expression for Standing Waves
What is the s...
Question
What is the speed of the component wave ?
A
120 cm/s
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B
240 cm/s
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C
143 cm/s
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D
287 cm/s
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Solution
The correct option is
A
120 cm/s
Speed of component wave of standing wave
y
=
A
s
i
n
(
k
x
)
c
o
s
(
ω
t
)
is
ω
k
=
40
π
π
/
3
=
120
c
m
/
s
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