JEE Main & Advanced Physics Wave Optics / तरंग प्रकाशिकी Question Bank EM Waves

  • question_answer
    Biological importance of Ozone layer is         [CBSE PMT 2001]

    A)            It stops ultraviolet rays

    B)            Ozone rays reduce greenhouse effect

    C)            Ozone layer reflects radio waves

    D)            Ozone layer controls \[{{O}_{2}}/{{H}_{2}}\] radio in atmosphere

    Correct Answer: A

    Solution :

               It stops ultraviolet rays


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