A source of sound placed at the open end of a resonance column sends an acoustic wave of pressure amplitude P0 inside the tube. If the atmospheric pressure is PA, then the ratio of maximum and minimum pressure at the closed end of the tube will be

Question:

Options :

a)(ρA+ρ0)/(ρA-ρ0)
b)(ρA+2ρ0)/(ρA-2ρ0)
c)ρA/ρ0
d)(ρA+1/2ρ0)/(ρA-1/2ρ0)

Answer :

a)(ρA+ρ0)/(ρA-ρ0)

Answer Steps :

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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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