A wave travelling along uniform string represented by 
is superimposed on another wave travelling along the same string represented by 
. The resultant is
A
a wave travelling along 
direction.
direction.
B
a standing wave having nodes at 
, where 
,
, where ,
C
a wave travelling along 
direction.
direction.
D
a standing wave having nodes at 
, where 
.
, where .
Text Solution
Verified by ExpertsThe correct answer is:
B
According to principle of superposition.
the resultant wave is
It is a standing wave equation.
For nodes, amplitude 
i.e. 
Since, 
; we get
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