29. Figure shows displacement time graph of a wave, Wave
length of the wave is 2m. Calculate
(1) Amplitude of wave
(11) Time period of wave
(iii) Velocity of wave
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Answer:
The equation of any wave isA
sin2π(
T
t
−
λ
x
)
.
Here the symbols have their usual meaning.
From the figure and the information, we know that
A=0.5m
T=6s ∵ the wave is repeating every 6 seconds
V=6m/s
x=8cm=0.08m
we know that
λ=
T
V
=
1m/s
The equation now becomes
0.5
sin2π(
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