A helium-neon laser emits a beam of unpolarized light that passes through three Polaroid filters, as shown in FIGURE 25-46.
In Fig 25-46

The intensity of the laser beam is I0.
(a) What is the intensity of the beam at point A?
(b) What is the intensity of the beam at point B?
(c) What is the intensity of the beam at point C?
(d) If filter 2 is removed, what is the intensity of the beam at point C?

Transcribed Image Text:

0, = 30° 8, = 90° A B 3. 2.