The diagram above shows two capacitors P and Q of capacitance 2μF and 4μF respectively connected to a d.c source. The ratio of energy stored in P to Q is

The diagram above shows two capacitors P and Q of capacitance 2μF and 4μF respectively connected to a d.c source. The ratio of energy stored in P to Q is

Answer Details

The energy stored in a capacitor is given by the formula 1/2CV^2, where C is the capacitance and V is the voltage across the capacitor. Since the capacitors P and Q are connected in parallel, they have the same voltage across them. Therefore, the ratio of energy stored in P to Q is the same as the ratio of their capacitances, which is 2:4 or 1:2. Therefore, the answer is option (D) 1:2.