When an unpolarized light of intensity I0 is incident on a polarizing sheet, the intensity of the light which does not get transmitted is :

Question

When an unpolarized light of intensity I0 is incident on a polarizing sheet, the intensity of the light which does not get transmitted is : (A) (1/2) I0 (B) (1/4) I0 (C) zero (D) I0

Tardigrade Admin · Accepted Answer

I=I0 cos2 θ Intensity of polarized light =(I0/2) ∴ Intensity of untransmitted light =I0-(I0/2)=(I0/2)

Q. When an unpolarized light of intensity $I_{0}$ is incident on a polarizing sheet, the intensity of the light which does not get transmitted is :

$\frac{1}{2} I_{0}$

$\frac{1}{4} I_{0}$

zero

$I_{0}$

$I = I_{0} co s^{2} θ$
Intensity of polarized light
$= \frac{I _{0}}{2}$
$∴$ Intensity of untransmitted light
$= I_{0} - \frac{I _{0}}{2} = \frac{I _{0}}{2}$

Q. When an unpolarized light of intensity I0​ is incident on a polarizing sheet, the intensity of the light which does not get transmitted is :

21​I0​

41​I0​