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10th Class Science Sources of Energy Question Bank Sources of Energy

  • question_answer
    Photoelectric effect is described as the ejection of electrons from the surface of metal when

    A)  it is heated to high temperature

    B)  light of suitable wavelength falls on it  

    C)  electrons of a suitable velocity impinge or

    D)  it is placed in a strong magnetic field

    Correct Answer: B

    Solution :

    Not Available


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