Why is it necessary to have two coherent sources to produce interference?
Coherent sources are mandatory for observable interference patterns because the rate of change of phase at a given point is constant for both the sources and hence maxima and minimum.
Can only coherent sources produce interference?
Only coherent light sources produce sustained interference.
Why are coherent sources required to produce interference of light give an example of interference of light in everyday life?
Coherent sources have same wavelength, frequency, and a constant phase difference between two light sources. For interference coherent sources are required because then only we will have constant maximum and minimum intensity of light on screen, other there will be a continuous fluctuation of intensity on screen.
What is meant by coherent source of light Why can’t incoherent sources produce interference patterns?
Coherent. Two sources of light waves are said to be coherent if the initial phase difference θ between the waves emitted by the sources remains constant in time. If θ changes randomly with time, the sources are called incoherent. Two waves produce interference pattern only if, they originate from coherent sources.
What is coherent and incoherent source of light?
Coherent sources are sources of light that emit waves which have zero or constant phase difference and same frequency. Incoherent sources are sources of light that emit waves which have random frequencies and phase differences.
What are two coherent sources of light Why are they said to be coherent?
Answer: Two sources of light are said to be coherent when both give out light waves of the same wave length and constant phase difference.
What are coherent sources of light what is the need of coherent sources?
We need coherent sources of light mainly to observe the effects of interference. Coherent sources have the same phase so the phase difference between the two sources remains constant. This is a necessary condition for observable and distinct interference.