If net flux through a Caussian surface is zero, then find whether the following statements are correct or not.
The number of field lines entering the surface equals to the number of field lines leaving the surface.

Explanation

To determine whether the statement "The number of field lines entering the surface equals the number of field lines leaving the surface" is correct when the net flux through a Gaussian surface is zero, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Electric Flux**:
- Electric flux (Φ) through a surface is defined as the product of the electric field (E) and the area (A) through which it passes, taking into account the angle (θ) between the field lines and the normal to the surface. Mathematically, it is given by:
\[
Φ = \int \vec{E} \cdot d\vec{A}
...