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(D) When an unpolarized light beam of intensity $I_0$ is incident on polarizer $A$,the intensity of the emerging polarized light is $I_1 = I_0/2$.Now,

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$I_0/4$

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(D) When an unpolarized light beam of intensity $I_0$ is incident on polarizer $A$,the intensity of the emerging polarized light is $I_1 = I_0/2$.Now,this polarized light of intensity $I_1 = I_0/2$ is incident on polarizer $B$ at an angle $	heta = 45^\circ$ with respect to its transmission axis.According to Malus's Law,the intensity of light emerging from polarizer $B$ is given by $I = I_1 \cos^2 	heta$.Substituting the values: $I = (I_0/2) \cos^2(45^\circ) = (I_0/2) 	imes (1/\sqrt{2})^2 = (I_0/2) 	imes (1/2) = I_0/4$.

An unpolarized light beam of intensity $I_0$ is incident on a polarizer $A$ and then passed through a second polarizer $B$. If the principal plane of polarizer $B$ makes an angle of $45^\circ$ with respect to polarizer $A$,the intensity of the emerging light will be ........

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