In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is :
1.8 V
1.3 V
0.5 V
2.3 V
A
1.3 V
B
2.3 V
C
1.8 V
D
0.5 V
Open in App
Solution
Verified by Toppr
Let V0 be the stopping potential
In a photoelectric effect, the maximum kinetic energy of electron ,
Kmax=eV0
so, V0=Kmaxe=0.5eVe=0.5V (as eV=1 electronic charge times 1 Volt)
Was this answer helpful?
43
Similar Questions
Q1
In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is :
View Solution
Q2
In a photo electric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is
View Solution
Q3
Figure represents a graph of kinetic energy of most energetic photoelectrons Km (in eV) and frequency υ for a metal used as cathode in photoelectric experiment. The threshold frequency of light for the photoelectric emission from the metal is
View Solution
Q4
The stopping potential for the photo electrons emitted from a metal surface of work function 1.7eV is 10.4V. Identify the energy levels corresponding to the transitions in hydrogen atom which will result in emission of wavelength equal to that of incident radiation for the above photoelectric effect.
View Solution
Q5
The stopping potential for the photo electrons emitted from a metal surface of work function 1.7eV is 10.4V. Identify the energy levels corresponding to the transitions in hydrogen atom which will result in emission of wavelength equal to that of incident radiation for the above photoelectric effect. [Take hc=1240eV. nm]