• 0_1544877018421_IMG_20181215_175946.jpg
    Can anyone explain me the solution. Cause I am not getting what they did

  • @kalpita
    Look it is just simple and i think just read throughly the HC Verma for refrence and the theory will be enough for polaroid or can google LAW of MALUS. It is a simple question and it will be better for you to read the theory, by this way it will help you to learn it better.
    Even then you have the doubt then please do ask in the below comments.

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