A system of three polarizers P1, P2, P3 is set up such that the pass axis of P3 is crossed with respect to that of P1. The pass axis of P2 is inclined at 60°C to the pass axis of P3. When a beam of unpolarized light of intensity I0 is incident on P1, the intensity of light transmitted by the three polarizers is I. The ratio (I0/I) equals (nearly) :
a)
1.80
b)
5.33
c)
10.67
d)
16.00
a)
1.80
b)
5.33
c)
10.67
d)
16.00
Question ID - 51569 | SaraNextGen Top Answer A system of three polarizers P1, P2, P3 is set up such that the pass axis of P3 is crossed with respect to that of P1. The pass axis of P2 is inclined at 60°C to the pass axis of P3. When a beam of unpolarized light of intensity I0 is incident on P1, the intensity of light transmitted by the three polarizers is I. The ratio (I0/I) equals (nearly) :
a)
1.80
b)
5.33
c)
10.67
d)
16.00
A system of three polarizers P1, P2, P3 is set up such that the pass axis of P3 is crossed with respect to that of P1. The pass axis of P2 is inclined at 60°C to the pass axis of P3. When a beam of unpolarized light of intensity I0 is incident on P1, the intensity of light transmitted by the three polarizers is I. The ratio (I0/I) equals (nearly) :
|
a) |
1.80 |
b) |
5.33 |
|
c) |
10.67 |
d) |
16.00 |
Angle between pass axes of P1 and P2 is 30°.
l = 
.cos230
. cos2 60
= 
⇒ 