Question $8(3$ points$)$

$$ Unpolarized light with initial intensity of $80\frac{W}{m^2}$ goes through $3$ polarizers. The first polarizer has a transmission axis at an angle of $+30$ degrees with respect to the vertical, the second polarizer has a transmission axis at an angle of $+30$ degrees with respect to the vertical $($the same as the first$),$ and the third polarizer has a transmission axis at an angle of $+50$ degrees with respect to the vertical. Increasing the first polarizer by just a small angle will do what to the final intensity of light?

$$ decrease it

$$ increase it

it will not change it