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Wave Optics
Question
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A beam of unpolarized light of intensity I0 is passed through a Polaroid A and then through another polaroid B which is oriented so that its principal plane makes an angle of 45° relative to that of A.The intensity of the emergent light is

  • I0

  • I0/2

  • I0/4

  • I0/8

Answer

C.

I0/4

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Some More Questions From Wave Optics Chapter

What is the shape of the wavefront in each of the following cases:
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What is the shape of the wavefront in each of the following cases:
The portion of the wavefront of light from a distant star intercepted by the Earth. 

Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?