Monichromatic lightof wavelenght 600 nm is used ina Young's double slilt experient. One of the slits is covered by a transparent sheet of thicknes `1.8xx10^-5` m made of a material of refractive index 1.6. How many fringe will shift due to the introduction of the sheet?

Explanation

To solve the problem, we need to determine how many fringes will shift in a Young's double-slit experiment when one of the slits is covered by a transparent sheet. Here are the steps to find the solution:

### Step-by-Step Solution:

1. **Identify Given Values:**
- Wavelength of light, \( \lambda = 600 \, \text{nm} = 600 \times 10^{-9} \, \text{m} \)
- Thickness of the transparent sheet, \( t = 1.8 \times 10^{-5} \, \text{m} \)
- Refractive index of the material, \( \mu = 1.6 \)
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