So angle between polarisation direction and pass axis of polariser is \(\left(\theta^{\prime}-\theta\right)\)
Given \(\theta = {8^o},{88^o},\,{188^o},\,\,{218^o}\)
\(\therefore I=I_{o} \cos ^{2}\,\left(\theta^{\prime}-\theta\right)\)
For \(\theta^{\prime}=203^o\) intensities are same