An ocean wave has a frequency of 9 Hz and a speed of 18 m/s. What is the wavelength of this wave? O 162 m
O 0.5 m
02 m
0 27 m

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.