Second polarizer is aligned 60 degrees from the vertical. What is the direction

Question

Second polarizer is aligned 60 degrees from the vertical.
What is the direction of oscillation of the electric field after passing through it?
What should the angle of polarization be if a third polarizer is added to reduce the intensity to zero? Second polarizer is aligned 60 degrees from the vertical.
What is the direction of oscillation of the electric field after passing through it?
What should the angle of polarization be if a third polarizer is added to reduce the intensity to zero?
What is the direction of oscillation of the electric field after passing through it?
What should the angle of polarization be if a third polarizer is added to reduce the intensity to zero?

Explanation / Answer

The direction of oscillation is also 60 degrees from the vertical

The third polarizer must be at (90+60) = 150 degrees from the vertical to reduce the intensity to zero

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