A sound wave propagates in a medium of Bulk modulus B by means of compressions and rare fractions. If P_( c) and P_(e )are the pressures at compression and rarefaction respectively, .a. be the wave amplitude and k be the angular wave number then,

A sound wave propagates in a medium of Bulk modulus B by means of comp

1.	A sound wave propagates in a medium of Bulk modulus B by means of compressions and rare fractions. If P_( c) and P_(e )are the pressures at compression and rarefaction respectively, .a. be the wave amplitude and k be the angular wave number then,
Answer» `P_c` is maximum and `P_r` is MINIMUM. `P_c` is minimum and `P_r` is maximum the PRESSURE amplitude is Bak if the DISPLACEMENT wave is `Y = a SIN(omegat -kx)` , the pressure wave at an instant is represented as `(P_(c)-P_(r))/2 cos(omegat -kx)` Which leads displacement wave by a phase angle of `pi//2`. ANSWER :A::C::D

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A sound wave propagates in a medium of Bulk modulus B by means of compressions and rare fractions. If P_( c) and P_(e )are the pressures at compression and rarefaction respectively, .a. be the wave amplitude and k be the angular wave number then,

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