00:01
According to malice law, the intensity of light passing through a polarizer is given by i is equal to i0 cos square theta.
00:11
Here i .0 is the incident intensity and theta is the angle between the transmission axis and the incident wave.
00:21
When an unpolarized light is incident on a polarizer with an intensity i .0, there is a the resulting intensity is equal to half the initial intensity.
00:36
Let this intensity which comes out of the first polarizer be equal to i1.
00:43
Now this slide passes through a second polarizer which is at an angle theta and let the intensity be i2.
00:55
Using malice law, i2 is equal to i1, cause square, and the intensity.
01:00
And as we know the second polarizer is at an angle 30 degrees with respect to the first one, theta is 30 degrees and i1 is i0 by 2 cost square 30 which is equal to 3 by 4 therefore the intensity of light coming out of the second polarizer is 3 i0 by 8 now the the light coming out of second polarizer which is i2 passes through the third polarizer and this third polarizer is at an angle of 45 degrees with respect to the first.
01:47
Therefore the resulting light will call that i3...