Linearly polarized microwave
$B = B_{max} sin (k_x ? ?t)$.
(a) Find $B_{max}$.
(b) Find k.
(c) Find ?.
(e) Calculate the average value of the Poynting vector for this wave. av
(f) If this wave were directed at normal incidence onto a perfectly reflecting sheet, what radiation pressure would it exert? $P_{rad}$
(g) What acceleration would be imparted to a 455–g sheet (perfectly reflecting and at normal incidence) with dimensions of 1.00 m × 0.750 m?
$Em/Bm = c$
$Bm = Em/c =180/3*10^8 =60*10^{-8}$ T
$k=2*pi/lambda = 2*pi/0.0149 =421.69 m^-{1}$
$lambda = C*T = C/F$
$F = C/lambda = 3*10^8/0.0149 =2.0134*10^10 s^-{1}$
$H = B/mu$
$S = 1/2*(E x H)=1/2(Em*B/mu) =0.5*(180*60*10^{-8}/4*pi*10^{-7}) =5.4*10^-5/4*pi*10^{-7} =$
$= 42.971 W/m^2$
$P = S/c =42.971/3*10^8 =1.432*10^{-7} N/m^2 =143.239 nPa$
$A =0.75 m^2$
$F = P*A =1.074*10^{-7} N$
$a =F/m =2.361*10^{-7} m/s/s =236.109 nm/s^2$