The Plates of a Parallel Plate Capacitor of Capacitance $C _ { 0 }$

Multiple Choice

The plates of a parallel plate capacitor of capacitance $C _ { 0 }$ are horizontal.Into the gap a slab of dielectric material with $K = 2$ is placed,filling the bottom half of the gap between the plates.What is the resulting new capacitance?

A) $\frac { 2 } { 5 } C _ { 0 }$
B) $\frac { 3 } { 4 } C _ { 0 }$
C) $4 C _ { 0 }$
D) $\frac { 5 } { 2 } C _ { 0 }$
E) $\frac { 4 } { 3 } C _ { 0 }$