To practice Problem-Solving Strategy 33.2 Linear Polarization. Unpolarized light

Question

To practice Problem-Solving Strategy 33.2 Linear Polarization. Unpolarized light of intensity 20 W/cm^2 is incident on a linear polarizer set at the polarizing angle theta_1 = 17 degree. The emerging light then passes through a second polarizer that is set at the polarizing angle theta_2 = 143 degree. Note that both polarizing angles are measured from the vertical. What is the intensity of the light that emerges from the second polarizer? If I_0 is the intensity of the unpolarized light incident on the first polarizer, and I_1 and I_2 denote the intensity of the light after the first and second polarizers, respectively, which of the following quantities are known? Check all that apply. What is the intensity I_2 of the light after passing through both polarizers? Express your answer in watts per square centimeter using three significant figures.

Explanation / Answer

given,

I = 20 W/cm^2

I1 = 20 * cos^2(17)

I2 = I2 * cos^2(143)

I2 = 20 * cos^2(17) * cos^2(143)

I2 = 11.67 W/cm^2

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.