For intensity I of a light of wavelength 5000 | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) According to Einstein's photoelectric equation: $E = W_0 + K_{\max}$.Here,$E$ is the energy of the incident photon,$W_0$ is the work function,and

Vedclass · Accepted Answer

$1.10$

Vedclass · Answer

(C) According to Einstein's photoelectric equation: $E = W_0 + K_{\max}$.Here,$E$ is the energy of the incident photon,$W_0$ is the work function,and $K_{\max}$ is the maximum kinetic energy of the emitted photoelectrons.The energy of the incident photon is given by $E = \frac{12375}{\lambda(\mathring{A})} eV = \frac{12375}{5000} eV = 2.475 eV$.The maximum kinetic energy is related to the stopping potential $V_0$ by $K_{\max} = e V_0 = 1.36 eV$.Substituting these values into the equation: $2.475 eV = W_0 + 1.36 eV$.Therefore,$W_0 = 2.475 eV - 1.36 eV = 1.115 eV \approx 1.10 eV$.

For intensity $I$ of a light of wavelength $5000 \mathring{A}$,the photoelectron saturation current is $0.40 \mu A$ and the stopping potential is $1.36 V$. The work function of the metal is ............. $eV$.

Similar Questions

The reading of a spring balance corresponds to $100 N$ while situated at the north pole and a body is kept on it. The weight record on the same scale if it is shifted to the equator, is $...........\,N$

(take, $g =10 m / s ^2$ and radius of the earth, $R =6.4 \times 10^3 m$ )

If $200 \text{ MeV}$ of energy is released in the fission of one nucleus of ${}_{92}^{236}U$,the number of nuclei that must undergo fission to release an energy of $1000 \text{ J}$ is

Which of the following is not linear?

Which one of the following pairs of reactants does not form oxygen when they react with each other?

Which of the following is the strongest conjugate base?

Vedclass Test Series

Exam Paper Generator

Online Exam Module