Statement I:In a progressive logitudinal wave, the amplitude of the wave will not be the same at all points of the medium along the direction of motion of the wave. Statement II: there is a continuous change of the phase angle of the wave as it progressive in the direction of motion.

Statement I:In a progressive logitudinal wave, the amplitude of the wa

1.	Statement I:In a progressive logitudinal wave, the amplitude of the wave will not be the same at all points of the medium along the direction of motion of the wave. Statement II: there is a continuous change of the phase angle of the wave as it progressive in the direction of motion.
Answer» Statement I is true, statement II is true and statement II is the correct explaination for statement I. Statement I is true, statement II is true and statement II is NOT the correct explaination for statement I. Statement I is true, statement II is FALSE. Statement I is false, statement II is true. Solution :Amplitude of a progressive LONGITUDINAL wave is the same at all points of a medium, ASSUMING there is no attenution. It is the instantaneous displacement of a PARTICLE frome the mean position that DIFFERS and depends upon the phase angle of the wave.