A progressive wave travelling in positive x - direction given by y = a cos(kx - wt) meets a denser surface at x = 0, t=0. The reflected wave is then given by - VgyanHub

Question:

A progressive wave travelling in positive x – direction given by y = a cos(kx – wt) meets a denser surface at x = 0, t=0. The reflected wave is then given by

Options :

a) y=-asin(kx-ω t)
b) y=-acos(kx+ω t)
c) y=asin(kx-ωt)
d) y= acos(kx-ωt)

Answer :

b) y=-acos(kx+ω t)

Answer Steps :

Video Tutorial

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:

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

Explore Our Courses