Question

A laser produces light that is polarized in the vertical direction. The light travels in the positive y-direction and passes through two polarizers, which have polarizing angles of 36.1

Answer 1

I₀ = P/(pi R²) = 18.1 * 10-3 / (pi * 0.535 * 10-3 * 0.535 * 10-3)

= 2.0 * 10⁴ W/m²

I_C = I₀ cos²(36.1) cos²(59.5 - 36.1)

I_C = (2.0 * 10⁴) * (0.6528) * (0.842)

I_C = 1.099 * 10⁴ W/m²

E = sqrt (2 I mu c) = sqrt( 2 * 1.099 * 10⁴* 4 * pi * 10-7 * 3 * 10⁸)

= 2.88 * 10³ V/m

B = sqrt ( 2 I mu / c) = sqrt ( 2 * 1.099 * 10⁴ * 4 * pi* 10-7 / (3 * 10⁸))

= 9.59 * 10-6 T

E = 2.88 * 10³ V/m

B = 9.59 * 10^-6 T

I_C = 1.099 * 10⁴ W/m²