With what velocity a listener should move relative to a stationary source so that if f is the frequency emitted by the source, it appears to him as 2f ?

Question:

Options :

(a) same as velocity of sound towards the source
(b) twice the velocity of sound towards the source
(c) half the velocity of sound towards the source
(d) same as velocity of sound away from the source

Answer :

(a) same as velocity of sound towards the source

Answer Steps :

step 1

Video Tutorial

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:

A 1 µF condenser is charged to 50 V. The charging battery is then disconnected and a 10 mH coil is connected across the capacitor so that LC oscillations occur. What is the maximum current in the coil ? Assume that the circuit contains no resistance. The capacity of a pure capacitor is 1 F. In d.c. circuits, its effective resistance will be

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

Online Support

Related Questions

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

Explore Our Courses

Access To All Courses from VgyanHub

Popular Courses

Company

Need Some Help?