Question 406: Waves Optics

Question

After passing through a polariser a linearly polarised light of intensity I is incident on an analyser making an angle of 30$$^\circ$$ with that of the polariser. The intensity of light emitted from the analyser will be

Accepted Answer

According to Malu's Law
$${I_{out}} = {I_{in}}\,{\cos ^2}	heta $$
$${I_{out}} = I\,{\cos ^2}(30^\circ )$$
$${I_{out}} = {{3I} \over 4}$$

Answer

$${{2I} \over 3}$$

Answer

$${I \over 2}$$

Answer

$${I \over 3}$$

Answer

$${{3I} \over 4}$$

Waves Optics

After passing through a polariser a linearly polarised light of intensity I is incident on an analyser making an angle of 30$^\circ$ with that of the polariser. The intensity of light emitted from the analyser will be

Choose the correct answer: