//Determine the voltage attenuation provided by a 25 cm length of waveguide a = 1; m = 1; vc = 3e+10; f = 1e+9; A = 25 L0 = 2; lambda0 = (2*a)/m; lambda = vc/f; lambdaDB = 54.5*(A/L0); disp(lambdaDB, 'Volatage attenuation is (in dB)')