| List-I | Industry | List-II | Waste Generated |
| (A) | Steel Plants | (I) | Gypsum |
| (B) | Thermal Power Plants | (II) | Fly ash |
| (C) | Fertilizer industries | (III) | Slag |
| (D) | Ppaer mills | (IV) | Bio-degradable Wastes |
The correct matches are:
A square loop of sides \( a = 1 \, {m} \) is held normally in front of a point charge \( q = 1 \, {C} \). The flux of the electric field through the shaded region is \( \frac{5}{p} \times \frac{1}{\varepsilon_0} \, {Nm}^2/{C} \), where the value of \( p \) is: