Phase and Phase Difference

In positive feedback, sample in phase has phase difference of

Two simple pendulums have time period T and 5T//4 . They start vibrating at the same instant from the mean position in the same phase. The phase difference (in rad) between them when the smaller pendulum completes one oscillation will be

Two simple pendulums have time periods T and 5T//4 . They start vibrating at the same instant from the mean position in the same phase. The phase difference between them when the pendulum with higher time period complets one oscillation is

At resonance in an LCR circuit the emf and current are (i) in phase . (ii) out of phase . (iii) having a phase difference of pi//2 . (iv) having a phase difference of pi //6 .

Two sound waves having a phase difference of 60^(@) have path difference of

Two particle execute SHM with amplitude A and 2A and angular frequency omega and 2omega repectively. At t=0 they starts with some initial phase difference. At, t=(2pi)/(3omega) . They are in same phase. Their initial phase difference is-

The phase difference between the voltage and the current in an AC circuit is pi//4 . If the frequency is 50Hz then this phase difference will be equivalent to a time of

For a path difference of lambda , the corresponding phase difference is ……………….radians.