sir please answer
Asked by minipkda
23rd May 2018,
9:26 PM
Answered by Expert
Answer:
In standing wave, the displacement y(x,t) of a particle at position x , at a time t is given by
y(x,t) = 2a sin(2π/λ)x cosωt
it can be seen from the above equation, the statement " In Standing waves different particles oscillate with same amplitude" is true
when distance between particles differ by λ/2 .
In assertion, it can be seen that particles lying at x=0 to x=λ/4 and particles lying at x=λ/4 to x=λ/2 differ by distance λ/4.
Hence these particles give in the above rang do not oscillate with same amplitude.
So the mechanical energy lying between the above ranges will not be equal
Answered by Expert
25th May 2018,
4:41 PM
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