A blind person after walking 10 steps in one direction, each of length 80 cm, turns randomly to the left or to right by 90 degree. After walking a total of 40 steps, the maximum displacement of the person from its starting point can be

Question:

Options :

(a) zero
(b) 8√2 m
(c) 16√2 m
(d) 32 m

Answer :

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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