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VIT Engineering VIT Engineering Solved Paper-2014

  • question_answer
    A metallic surface ejects electrons. When exposed to green light of intensity I but no photoelectrons are emitted, when exposed to yellow light of intensity 7. It is possible to eject electron from the same surface by

    A) yellow light of same intensity which is more than

    B)  green light of any intensity

    C) red light of any intensity

    D) None of the above

    Correct Answer: A

    Solution :

     \[\Omega \] VIBGYOR pattern shows that VIBG all have \[\Omega \] less than that of yellow colour and hence can initiate photoelectric effect irrespective of intensity.


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