Question

are the two sources in phase or out of phase? explain how you can tell from the diagram. if the two sources are out of phase, give the phase difference between the two sources. explain.

Answer 1

If two sources emit waves with the same wavelength and a constant phase difference ϕ, they are said to be coherent.

What is coherent source ?

• If the frequency and waveform of two wave sources are the same, they are coherent. Waves' optimal quality of coherence makes stationary interference possible.
• When the phase difference between two beams of light is constant, they are coherent; if the phase difference is random or changes, they are noncoherent.
• The concept of a superpositioning at the core of quantum physics and quantum computing is referred to as "quantum coherence." Quantum coherence specifically considers a scenario in which a wave property of an item is split in two and the two waves coherently interfere with one another.
• The interference visibility, which examines the size of the interference fringes in relation to the input waves, is an easy way to measure the degree of coherence; correlation functions provide a precise mathematical definition of the degree of coherence.

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