Question asked by Filo student

In Youngs double slit experiment, the two slits act as coherent sources of equal amplitude $A$ and wavelength $\lambda$. In another experiment with the same set up the two slits are sources of equal amplitude $A$ and wavelength $\lambda$ but are incoherent. The ratio of the intensity of light at the mid-point of the screen in the first case to that in the second case is :

1. $4:1$
2. $2:1$
3. $1:1$
4. None of the above

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Updated on: Nov 5, 2023