It takes 2.0 second for a sound wave to travel between two fixed points when the day temperature is 10 °C. If the temperature rises to 30 °C, the sound wave travels between the same two points is

Question:

Options :

(a) 2.2 s
(b) 1.9 s
(c) 2.0 s
(d) 2.1 s

Answer :

(b) 1.9 s

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:

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