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Most Important Selected Qs for JEE AdvancedPhysicsWaves and Sound

The particle displacement of a travelling longitudinal wave is represented by S=f(x, t) . The midpoints of a compression zone and an adjacent rarefaction zone are represented by the letter ' C ' and ' R '. Which of the following is true?

Options

  1. A| S x |_C= | S x |_R
  2. B| S t |_ C = | S t |_ R =0
  3. C(pressure _ c -( pressure )_R=2 | ~S x |_ C ( bulk modulus of air )
  4. DParticles of air are stationary mid-way between ' C ' and ' R '.

Correct answer

D. Particles of air are stationary mid-way between ' C ' and ' R '.

Step-by-step solution

P_C-P_R=2 B A K S=A (k x- t) ( S x )_ C = AK

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