# Modified YDSE!

A Young's Double Slit Experiment (YDSE) is performed. In the figure, the light is entering from water with refractive index $$\dfrac{4}{3}$$. There is a rectangular slab in front of $$S_2$$ which is filled with water.

Find the vertical position of central maxima.

Details and Assumptions:

• Monochromatic light is used.

• $$d=0.3 \text{ mm}$$

• Thickness of slab $$t=0.41\text{ mm}$$.

• $$D=1\text{ m}$$.

• Consider the center of $$S_1$$ and $$S_2$$ to be the origin and the vertical distance being measured from it.

• Use SI units.

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