Question

Assertion: The transverse wave is travelling along a string in the positive x axis as shown. Points A & P1 moving ↓ (downward) and points C & P2 moving (upward). Reason: In a wave propagating in positive x direction the points with +ve slope move downward and vice versa.

Assertion: In a harmonic progressive wave of a given frequency, all particles have the same phase but different amplitudes at a given instant of time. Reason: In a stationary wave, all particles between two nodes have the same amplitude at a given instant but have different phases.