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

  • question_answer
    Infrared radiation was discovered in 1800 by [KCET 2005]

    A)            William Wollaston              

    B)            William Herschel

    C)            Wilhelm Roentgen            

    D)            Thomas Young

    Correct Answer: B

    Solution :

               William Herschel


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