NEET Sample Paper NEET Sample Test Paper-74

  • question_answer
    A light is an electromagnetic wave consist of particles called photon, if a photon travelling in air enters into a glass slab of large thickness then which of the following quantities will remain unchanged?

    A)  velocity                       

    B)  wavelength           

    C)  momentum                  

    D)  Energy

    Correct Answer: D

    Solution :

    Frequency remains constant on refraction or reflection. As now, \[\operatorname{energy} of a photon =h\nu .\]


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