Two waves y1 =Acos (0.5πx-100πt) and y2=Acos(0.46 πx-92πt) are travelling in a pipe placed along x-axis, where x is in metres and t is in seconds. Find the number of times intensity is maximum in time interval of 1 s

Question:

Options :

a)4
b)6
c)8
d)10

Answer :

a)4

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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