Fringes are obtained with the help of a biprism in the focal plane of an eyepiece distant 1 m from the slits. A convex lens produces images of the lit in two position between biprism and eyepiece. The distances between two images of the slit in two position are `4.05xx10^(-3)m` and `2.9xx10^(-3)m` respectively. Calculate the distance between the slits.

Explanation

To solve the problem of finding the distance between the slits using the given distances between the images formed by a convex lens, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Configuration**:
- We have two slits \( S_1 \) and \( S_2 \) separated by a distance \( d \).
- A convex lens forms images of these slits at two different positions, resulting in distances \( d_1 \) and \( d_2 \) between the images.

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