ii) The resultant intensity due to the destructive interference of two waves is 36 W/m. Evaluate the amplitude of each wave if the ratio of their amplitudes is 1/4.

ii) The resultant intensity due to the destructive interference of two waves is 9 W/m2. Evaluate the amplitude of each wave if the ratio of their amplitudes is 3/2.

(i) the wave period, T (ii) the wavelength, λ, (iii) the electric field, E. (iv) the phase difference between E and H

Two waves of the same frequency have amplitudes 1.00 and 2.00. They interfere at a point where their phase difference is 60.00. What is the resultant amplitude?

Ex, 27 : What should be the tension applied to a wire of length 0.8 m and mass 5 gm if it is to vibrate with a fundamental frequency 100 Hz ?

Q2/ A plane wave propagating through Lossy dielectric medium with &, = 8.4, = 2 " has E = 0.5 e-z/3 sin (10°t – Bz)ax v/m. Determine ß, loss tangent (condition), wave velocity and n? F H Mo 2 पत \1o +

(2) The pipes in organs are much bigger than our tube. What would be the fundamental frequency of an organ pipe of length L-2.40 m and diameter D = 15.5 cm, which is open at both ends? Assume a standard room temperature of 70 °F. Show you work.

An E&M wave has an e-field given by E(x,t) - -(4.950V/m)k cos(ky + (1.38 x 101 rud/)t) Which of the following is correct for B(x, t) and the direction of propagation? (c - 3x10 m/s) B(7, t) - -(0.165 NA)i cos ((4.6 x 10° rad/m)y + (1.38 x 1015 rad/)e),y B(x, t) - (33.0 nT)j cos (2.3 x 10*rad/m)y + (2.78 x 101 rad/s)e). - d/m)y + (1.38 x 10 rad 1. I. rad/).-y B(x, t) = (11.5 aT)t cos ((4.6 x 10 rad/mly + (1.38 x 10 rad (1.38 x 101 rad, /,). -y. B(x, t) - (16.5 nT)t cos ((4.6 x 10* rad II. IV. IV None of the above

show that a function f=f(u), where w=x-vt, satisfies the wave equation: