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J & K CET Engineering J and K - CET Engineering Solved Paper-2014

  • question_answer
    r. The smallest quantity of energy that can be emitted or absorbed in the form of electromagnetic radiation is known as

    A)  quantum          

    B)  photon 

    C)  spectrum        

    D)  photoelectron

    Correct Answer: A

    Solution :

     According to Ptank's, atoms and molecules could emit or absorb energy in discrete quantities only, which are called quantum.


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