Uttarakhand PMT Uttarakhand PMT Solved Paper-2010

  • question_answer
    Photoelectric effect is maximum in

    A)  Cs              

    B)  Na

    C)  K   

    D)  \[Li\]

    Correct Answer: A

    Solution :

     The phenomenon of ejection or emission of electrons from the metal surface when electromagnetic radiations are made to strike against them is called photoelectric effect. Due to low ionisation enthalpy, cesium eject the electron most readily when exposed to light.


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