Question

A sound wave of wavelength 80 cm travels in air.If pressure amplitude at a point is 1/2x 10-3 N/m2 then maximum displacement of particle is(Bulk modulus = 1.4 x 105 N/m2)(1) 2.2 Å(2) 4.4(3) 1.4(4) 8.8 Å​

Answer 1

A sound wave of wavelength 80 cm travels in air.If pressure amplitude at a point is 1/2x 10-3 N/m2 then maximum displacement of particle is(Bulk modulus = 1.4 x 105 N/m2)(1) 2.2 Å(2) 4.4(3) 1.4(4) 8.8 Å