The capacitors, each of $$4 \mu \mathrm{F}$$ are to be connected in such a way that the effective capacitance of the combination is $$6 \mu \mathrm{F}$$. This can be achieved by connecting

Which of the following statements about a series LCR circuit connected to an ac source is correct?

According to Huygens principle, the amplitude of secondary wavelets is

The radius of the $$\mathrm{n}^{\text {th }}$$ orbit in Bohr model of hydrogen atom is proportional