A capacitor has capacitance \( 5\,\mu F \) when it’s parallel plates are separated by air medium of thickness \( d \). A slab of material of dielectric constant \( 1.5 \) having area equal to that of plates but thickness \( \dfrac{d}{2} \) is inserted between the plates. Capacitance of the capacitor in the presence of slab will be (in \( \mu F \)) ____.
