reversal of phase मीनिंग इन हिंदी

Due to the change in signal propagation direction on reflection, the signal undergoes a reversal of phase.
Photonic crystals, like many other known systems, can exhibit unusual propagation behavior such as reversal of phase and group velocities.
Since the imaginary part of the amplitude contains the phase of the beam, this results in the reversal of phase property of the effect.