12th Class Physics Wave Optics / तरंग प्रकाशिकी Question Bank Wave Optics Conceptual Problems

  • question_answer
    Write two simple uses of polaroids.

    Answer:

                    (i) Polaroids are used in sunglasses and camera filters to reduce glare of light. (ii) In window panes of aeroplanes to control the amount of light coming in.


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