Which of the following statements is not true about stopping potential $(V_0)$?

  • A
    It depends on the nature of the emitter material.
  • B
    It depends upon the frequency of the incident light.
  • C
    It increases with an increase in the intensity of the incident light.
  • D
    It is $1/e$ times the maximum kinetic energy of the emitted electrons.

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Light is incident on a metallic plate having a work function of $ 110 \times 10^{-20} \ J $. If the produced photoelectrons have zero kinetic energy, then the angular frequency of the incident light is . . . . . . $ rad/s $. $( h = 6.63 \times 10^{-34} \ J \cdot s )$

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
$Assertion$ $A$ : Number of photons increases with increase in frequency of light.
$Reason$ $R$ : Maximum kinetic energy of emitted electrons increases with the frequency of incident radiation.
In the light of the above statements,choose the most appropriate answer from the options given below :

Explain Einstein's photoelectric effect and derive Einstein's photoelectric equation.

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