NEET Physics Photo Electric Effect, X- Rays & Matter Waves NEET PYQ-Photo Electric Effect,X-Rays

  • question_answer
    Photoelectric emission occurs only when the incident light has more than a certain minimum                 [AIPMT (S) 2011]

    A)  wavelength       

    B)       intensity           

    C)  frequency         

    D)       power

    Correct Answer: C

    Solution :

    By the concept of threshold minimum frequency needed for photoelectric emission.
    \[\frac{1}{2}m{{v}^{2}}=h(v-{{v}_{0}})\]
    \[v\ge {{v}_{0}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner