Two identical incandescent light bulbs are connected as shown in the figure. When the circuit is connected to an AC voltage source of frequency f, which of the followingobservations will be correct?

Both bulbs will glow with same brightness ifXL=XC  ∵XL=ωL∵ω=2πf   2.  Xc=1ωCThe condition shown above ensures the same current in both bulbs.On simplifying we get,2πfL=12πfCor f=12πLCTherefore, the correct answer is (B).