Two polaroids are placed with their optiic axis perpendicular to each other One of them is rotated through 45 - Physics - Wave Optics

Question

Two polaroids are placed with their optiic axis perpendicular to
each other One of them is rotated through 45 degrees then what is
the intensity of light emerging from the second polaroid if
Io is the intensity of the unpolarised light?

Kulshekhar Mehta · Accepted Answer

Here intensity of unpolarized light is Io
When this light is passes through first polarizer then its
intensity becomes Io2
Now the angle between the first polarizer and second polarizer is
450
Thus final intensity becomes I=Io2cos245=Io2×122=I04

Two polaroids are placed with their optiic axis perpendicular to each other. One of them is rotated through 45 degrees then what is the intensity of light emerging from the second polaroid if Io is the intensity of the unpolarised light?

Two polaroids are placed with their optiic axis perpendicular to each other. One of them is rotated through 45 degrees then what is the intensity of light emerging from the second polaroid if I_o is the intensity of the unpolarised light?