In a medium, the phase difference between two particles separated by a distance ‘x’ is (π/5)^c. If the frequency of the oscillation of particles is 25 Hz and the velocity of propagation of the wave is 75 m/s, then the value of x is

Question:

Options :

(a) 0.4 cm
(b) 0.2 cm
(c) 0.1 cm
(d) 0.3 cm

Answer :

(d) 0.3 cm

Answer Steps :

step 1

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

In an a. c. circuit the instantaneous current and e.m.f. are represented as: I = I0 sin(ωt – π/6) and E = E0 sin(ωt + π /3) respectively. The voltage leads the current by

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