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  1. V

    Find minimum velocity of emitted electron

    Hi ill try to explain it. Convert the workfunction ( 5ev) into energy and then solve E=hv for v ( frequency) youll get the threshold frequency ( we call it x) that is the frequency required. then put the value in the following equation K.E.=h(v-x) v is the frequency of the light and then solve...
  2. V

    Can someone explain me why f=ma ?

    hey thanks guys for your help i had solved so many questiond on newtons laws of motion but i didnt get the correct meaning of his second law
  3. V

    Can someone explain me why f=ma ?

    hey guys i had a doubt can someone please explain me why force=mass x acceleration?