Which of the following statements is correct | vedclass

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(C) According to Einstein's photoelectric equation,the maximum kinetic energy of the emitted photoelectrons is given by $K_{max} = h
u - \phi_0$,wher

Vedclass · Accepted Answer

For a given frequency of incident radiation,the maximum kinetic energy of the photoelectrons is independent of its intensity.

Vedclass · Answer

(C) According to Einstein's photoelectric equation,the maximum kinetic energy of the emitted photoelectrons is given by $K_{max} = h
u - \phi_0$,where $h$ is Planck's constant,$
u$ is the frequency of incident radiation,and $\phi_0$ is the work function of the metal. This equation shows that $K_{max}$ depends only on the frequency of the incident radiation and is independent of the intensity of the incident radiation. Therefore,option $(C)$ is correct. For a given frequency,the photocurrent is directly proportional to the intensity of incident radiation. The stopping potential depends only on the frequency of incident radiation and is independent of the intensity. If the frequency of incident radiation is less than the threshold (cutoff) frequency,no photoelectric emission occurs,regardless of how much the intensity is increased.

Which of the following statements is correct in the case of the photoelectric effect?

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For a metal with a work function of $6.6 \text{eV}$, which of the following wavelengths of incident radiation does not cause the photoelectric effect (in $\text{nm}$)? (Take Planck's constant $h = 6.6 \times 10^{-34} \text{J s}$ and speed of light $c = 3 \times 10^8 \text{m/s}$)

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