| A travelling wave represented by |
 |
is superimposed on another wave represented by  |
| The resultant is : [AIEEE 11-05-2011] |
A) A wave travelling along + x direction
B) A wave travelling along - x direction
C)
A standing wave having nodes at 
..
D)
A standing wave having nodes at
Correct Answer: D
Solution :
[d]  |
 standing wave |
For nodes  |
 |
 
.. |
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