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Question

Choose the correct statements:


  1. There is a phase change of   in the pressure wave when it is reflected by an open end in an organ pipe
  2. In standing wave, all the particles between two successive nodes reach their extreme positions together
     
  3. Equation y=2 A cos kx cos ω t represetnts a standing wave
     
  4. Figure shows a travelling wave in stretched string kinetic energy and potential energy both will be zero at point A


Solution

The correct options are
A There is a phase change of   in the pressure wave when it is reflected by an open end in an organ pipe
B In standing wave, all the particles between two successive nodes reach their extreme positions together
 
C Equation y=2 A cos kx cos ω t represetnts a standing wave
 
Fact based question.

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