824.1 Light waves and the coherent condition of waves 2. The interference phenomena of waves 824.1 Light waves and the coherent condition of waves 3. Coherence and the conditions of coherence OA superposition of waves may give rise to variations in the resulting amplitude of the total wave disturbance, known as interference @the conditions of coherence >The same physical type of waves, and same direction of the oscillation The same frequency; )A phase difference that is independent of time The phase difference is the difference between the individual phases of the two waves.2 §24.1 Light waves and the coherent condition of waves 2. The interference phenomena of waves 3. Coherence and the conditions of coherence 1A superposition of waves may give rise to variations in the resulting amplitude of the total wave disturbance, known as interference. 2the conditions of coherence ¾The same physical type of waves, and same direction of the oscillation; ¾ The same frequency; ¾A phase difference that is independent of time. The phase difference is the difference between the individual phases of the two waves. §24.1 Light waves and the coherent condition of waves