Photoelectrons are ejected from a metal when light of frequency $v$ falls on it. Pick out the wrong statement from the following:

  • A
    No electrons are emitted if $v$ is less than $W/h$,where $W$ is the work function of the metal.
  • B
    The ejection of the photoelectrons is instantaneous.
  • C
    The maximum energy of the photoelectrons is $hv$.
  • D
    The maximum energy of the photoelectrons is independent of the intensity of the light.

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When a photon with energy $8\ eV$ is incident on a metal surface having a threshold frequency of $1.6 \times 10^{15}\ Hz$,the maximum kinetic energy of the emitted photoelectrons is ............ $eV$. (Given: $h = 6.6 \times 10^{-34}\ J\cdot s$,$1\ eV = 1.6 \times 10^{-19}\ J$)

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What happens to the incident photon involved in the photoelectric effect experiment?

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