Photoelectric EffectHard
Question
At time t = 0, some radioactive gas is injected into a sealed vessel. At time T, some more of the same gas is injected into the same vessel. Which one of the following graphs best represents the variation of the logarithm of the activity A of the gas with time t ?
Options
A.
B.
C.
D.
Solution
A = A0] e−λt
ln A = ln A0 − λt
ln A versus t is a linearly decreasing graph with slope depending to λ. As λ does not change, slope remains same.
ln A = ln A0 − λt
ln A versus t is a linearly decreasing graph with slope depending to λ. As λ does not change, slope remains same.
Create a free account to view solution
View Solution FreeMore Photoelectric Effect Questions
A photon in motion has a mass equal to :...In photoelectric emission process from a metal of workfunction 1.8 eV, the kinetic energymost energetic electron is 0.5 ...Which of the following is a wrong description of binding energy of a nucleus ?...The graph of ln (R/R0) versus ln A (R = radius of a nucleus and A = its mass number) is...When a light of a given wavelength falls on a metallic surface the stopping potential for photoelectrons is 3.2 V . If a...