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  5. Photo Electric Effect, X- Rays & Matter Waves

JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves JEE PYQ-Photo Electric Effect X-rays

  • question_answer
    A 10 kW transmitter emits radio waves of wavelength 500 m. The number of photons emitted per second by the transmitter is of the order of              [JEE ONLINE 12-05-2012]

    A) 1037 

    B) 1031

    C) 1025

    D) 1043

    Correct Answer: B

    Solution :

    [b] Power (where, n = no. of photons per second)


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