There is an unpolarized light with the intensity 420 W/m2. There are three polar

Question

There is an unpolarized light with the intensity 420 W/m2. There are three polarizers and have their transmission axes aligned as follows:

Polarizer A - the transmission axis is at +12.0° to the vertical;
Polarizer B - the transmission axis is at +78.0° to the vertical;
Polarizer C - the transmission axis is at +33.0° to the vertical.

If you want to maximize the intensity of the light emerging from the second polarizer now, which two polarizers should you select, and in what order should the light pass through them?

Explanation / Answer

use : i = io cos^

initial intensity is 420

after 1 sheet

i1 = 420/2 = 210

after 2 sheet

i2 = 210 cos^2( 2-1)

here we need  2-1 should be min so A and C = 33-12 = 21 which is minimum

so we will use A and then C

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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