A wave on a string meets with another wave producing a node at . Then the equation of the unknown wave is :
As we learnt in
Property of stationary waves -
1) Disturbance do not move in any direction.
2) All particles except nodes perform S.H.M.
3) During the formation of a stationary wave the medium is broken into equally spaced loops
4) Amplitude of the particle is different at different point
: Consider option (a)
Stationary wave :
when is not zero. The option is not acceptable.
Consider option (b)
This option holds good
Option (c) gives
Option (d) gives Y = 0
Hence only option (b) holds good
Correct option is 2.
This is an incorrect option.
This is the correct option.
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