A beam of polarized light is sent into a system of two polarizing sheets . Relative to the polarization diretion of that incident light the polarizing direction of the sheets are at angles `theta ` for the first sheet and `90^(@)` for the second sheet . (a ) If 0.20 of the incident intensity is transmitted by the two sheets what is `theta` (b ) What percentage of the incident intensity is transmitted if the first sheet angle is reduced to `0^(@)` ?

Explanation

`theta =32^(@) ` or `58^(@)` , (b) the transmitted intensity is zero