A wave travelling in positive X-direction with A = 0.2 m, velocity = 360 m/s and wavelength λ λ = 60 m, then correct expression for the wave is:-
A
y = 0.2sin2 π π 
B
y = 0.2sin 
C
y = 0.2sin2 π π 
D
y = 0.2sin π π 
Text Solution
Verified by ExpertsThe correct answer is:
C
The expression of travelling wave is sine or cosine function of 
.
The general expression of travelling wave can be written as
For travelling wave along positive 
-axis we should use minus ( - ) sign only
but 
and 
So, 
Given, 
Substituting in Eq. (ii), we have
or 
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