the stopping potential `V_(o)` (in volt) as a function of frequency (v) for a soidum emitter, is shown in the figure. The work function of sodium from the data plotted in the figure. Will be: [ given plank's constant `(h)=6.63xx10^(-34)Js`, electron charge `e=1.6xx10^(-19)C`)
The stopping potential V_(0) (in volt) as a function of frequency (v) for a sodium emitter, is shown in the figure. The work function of sodium, from the data plotted in the figure, will be: (Given : Planck’s constant) (h) = 6.63 xx10^(-34)Js" electron charge "e=1.6xx10^(-19)C )
The momentum of a photon of de Broglie wavelength 5000Å is …………… . [Plank's constant =6.63xx10^(-34)J.s ]
A student performs an experiment on photoelectric effect using two materials A and B. A plot of stopping potential (V_(0)) vs freqency (v) is as shown in the figure. The value of obtained from the experiment for both A and B respectively is (Given electric charge of an electron =1.6xx10^(-19)C)
Calculate the speed of the electron in the first Bohr orbit given that h=6.6xx10^(-34) Js, m=9.11xx10^(-31) kg and e=1.603xx10^(-19) C .
If the work function of a and is 3 eV, calculate the threshold wavelength of that metal. (Velocity of light =3xx10^(8)m//s Planck's constant= 6.63xx10^(-34)J-s,1eV=1.6xx10^(-19) )
The threshold frequency for a certain metal is 3.3xx10^(14) Hz. If light of frequency 8.2xx10^(1) Hz (hertz) is incident on the metal , find the cut - off voltage for photoelectric emission . Given Planck's constant h = 6.625xx10^(-34) Js (joule second ) . Charge of electron e = 1.6 xx10^(-19) C (coulomb).
