Hi all!
Pls answer my 2 simple questions
Thanks in advance

what are your 2 simple questions?

vertical, at an angle between horizontal and vertical, horizontal.

Explanation:

The vertically polarized light will be able to pass completely through the vertical filter, since it blocks all waves except those that travel in the vertical direction.  

If the polarizing filter at an angle between horizontal and vertical, is placed between the vertical and horizontal polarizers, a certain percentage of the incident light polarized vertically will be transmitted, being polarized with a direction according to the angle of said filter.

Therefore, after exiting this filter, the light will be able to transmit after crossing the horizontal filter