dhairay kansal
9 years ago

photo-electrons are emitted when

A. zinc plate is heated

B. zinc plate is hammered

C. zinc plate is irradiated with light of sutable frequency

D. zinc plate is subjected to very high voltage


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Comments (3)

  1. Dhanya Shree
    Dhanya Shree:
    5 years ago

    C

  2. Paras Bhujel
    Paras Bhujel:
    5 years ago

    A

  3. Paras Bhujel
    Paras Bhujel:
    5 years ago

    A

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