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

  • question_answer
    Approximate height of ozone layer above the ground is [CBSE PMT 1991]

    A)            60 to 70 km                           

    B)            59 km to 80 km

    C)            70 km to 100 km                 

    D)            100 km to 200 km

    Correct Answer: A

    Solution :

               60 to 70 km                           


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