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JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Matter Waves

  • question_answer
    A particle which has zero rest mass and non-zero energy and momentum must travel with a speed [MP PMT 1992; DPMT 2001; Kerala PMT 2004]

    A)            Equal to c, the speed of light in vacuum

    B)            Greater than c

    C)            Less than c

    D)            Tending to infinity

    Correct Answer: A

    Solution :

               Particle is photon and it travels with the velocity equal to light in vacuum.


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