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in column - I certain situations are shown Column-II has different values of phase difference Match them [take `pi^(2)=10` wherever required] |
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Answer» Correct Answer - [(A)Q(B)R(C)S] (A) `phi=tan^(-1)(R/(X_(L)))=tan^(-1)(R/(omegaL))=tan^(-1)(20/(2pi^(2)))=tan^(-1)(1)` (B) `T=2pisqrt(l/g),So T_(1)approx 2s,T_(2)approx 4s` `Deltaphi=(Deltaomega)t=((2pi)/T_(1)-(2pi)/T_(2))t=2pi(1/2-1/4)1` `Deltaphi=pi//2` (C)`Deltaphi=kDeltax=(2pi)/lambda Deltax=(2pif)/V Deltax=pi` `V=sqrt(T/mu)=100m//s` |
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